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vii

Administrator’s Guide for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway

OL-7995-01

Preface

This preface describes the objectives, intended audience, and organization of the

Administrator’s Guide

for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway

,

and

Cisco IPVC 3540 PRI Gateway

Release 4.0 and defines the conventions used to convey instructions and

information. It also discusses how to obtain documentation and technical support.

Objectives

This guide describes how to install, configure, and use the Cisco IPVC 3521 BRI Gateway,
Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway.

Audience

This guide is intended for network administrators who need instructions about how to install and
configure the Cisco IPVC 3500 Series Gateway as well as create conferences using the Gateway
interface.

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Warning

This unit is intended for installation in restricted access areas. A restricted access area is where
access can only be gained by service personnel through the use of a special tool, lock and key, or
other means of security, and is controlled by the authority responsible for the location.

Warning

Read the installation instructions before you connect the system to its power source.

Warning

The device is designed to work with TN power systems.

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Содержание 3521

Страница 1: ... Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Administrator s Guide for Cisco IPVC 3521 BRI Gateway Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway Release 4 0 Text Part Number OL 7995 01 ...

Страница 2: ...OR ANY INDIRECT SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Administrator s Guide for Cisco IPVC 3521 BRI Gateway Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway Release 4 0 2005 Ci...

Страница 3: ... Support Website xiv Submitting a Service Request xiv Definitions of Service Request Severity xiv Obtaining Additional Publications and Information xv Overview of the Cisco IPVC 3500 Series Gateway 1 1 About Cisco IPVC 3500 Series Gateway Products 1 1 About the Cisco IPVC 3521 BRI Gateway Physical Description 1 1 About the Cisco IPVC 3526 PRI Gateway 1 3 About the Cisco IPVC 3540 PRI Gateway 1 5 A...

Страница 4: ... 3540 PRI Gateway 2 5 Installing the PRI RTM in the Cisco IPVC 3544 Chassis Top Slot 2 6 Installing the PRI RTM in a Cisco IPVC 3544 Chassis Slot Other Than the Top Slot 2 7 Installing the Cisco IPVC 3540 PRI Gateway Module 2 8 Assigning the IP Address for Cisco IPVC 3500 Series Gateways 2 9 Changing the Configuration Tool Login Password 2 11 Connecting the Cisco IPVC 3521 BRI Gateway to the Netwo...

Страница 5: ...per 3 5 Configuring the Gateway for Peer to Peer IP Connectivity 3 7 Configuring IVR Settings 3 9 Configuring Outgoing Call Delimiters 3 10 About Encoding Decoding Protocols 3 11 About Audio Transcoding 3 11 About T 120 Data Collaboration Support 3 12 Configuring Encoding Decoding Protocols 3 12 Configuring ISDN Channel Bonding Settings for Downspeeding 3 13 Configuring Quality of Service Settings...

Страница 6: ...Out to the ISDN Network Through the Gateway 4 1 About Gateway Services 4 1 About Second Number Delimiters 4 2 About Dialing from the ISDN Network to the IP Network 4 3 About Incoming Call Routing 4 3 About the IVR Operator 4 5 About Dialing through the IVR 4 6 About Dialing Indirectly through an Operator 4 6 Troubleshooting the Cisco IPVC 3500 Series Gateway 5 1 About Problems Encountered Setting ...

Страница 7: ...ateway and Cisco IPVC 3540 PRI Gateway Audience This guide is intended for network administrators who need instructions about how to install and configure the Cisco IPVC 3500 Series Gateway as well as create conferences using the Gateway interface Warning Only trained and qualified personnel should be allowed to install replace or service this equipment Warning This unit is intended for installati...

Страница 8: ...iew of the Cisco IPVC 3500 Series Gateway Provides a general overview of Cisco IPVC 3500 Series Gateway products features and network architecture Chapter 2 Installing the Cisco IPVC 3500 Series Gateway Describes how to install the Cisco IPVC 3500 Series Gateway how to use the Gateway interface to configure board and system settings and add Cisco IPVC 3500 Series Gateway users Chapter 3 Configurin...

Страница 9: ...ment through menu options for example Click Start Run boldface Indicates a button that you are instructed to click for example Click Next screen Shows an example of information displayed on the screen boldface screen Shows an example of information that you must enter Table 4 Command Syntax Conventions Convention Description boldface Indicates commands and keywords that are entered literally as sh...

Страница 10: ...fety Information kirjasesta määräysten noudattaminen ja tietoa turvallisuudesta Attention Ce symbole d avertissement indique un danger Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels Avant de travailler sur un équipement soyez conscient des dangers posés par les circuits électriques et familiarisez vous avec les procédures couramment utilisées pour évite...

Страница 11: ...anos físicos Antes de começar a trabalhar com qualquer equipamento familiarize se com os perigos relacionados com circuitos eléctricos e com quaisquer práticas comuns que possam prevenir possíveis acidentes Para ver as traduções dos avisos que constam desta publicação consulte o documento Regulatory Compliance and Safety Information Informação de Segurança e Disposições Reguladoras que acompanha e...

Страница 12: ...ing Cisco Marketplace http www cisco com go marketplace Ordering Documentation You can find instructions for ordering documentation at this URL http www cisco com univercd cc td doc es_inpck pdi htm You can order Cisco documentation in these ways Registered Cisco com users Cisco direct customers can order Cisco product documentation from the Ordering tool http www cisco com en US partner ordering ...

Страница 13: ...fore we release them and we strive to correct all vulnerabilities quickly If you think that you might have identified a vulnerability in a Cisco product contact PSIRT Emergencies security alert cisco com Nonemergencies psirt cisco com Tip We encourage you to use Pretty Good Privacy PGP or a compatible product to encrypt any sensitive information that you send to Cisco PSIRT can work from encrypted...

Страница 14: ...cate the serial number label on your product and record the information before placing a service call Submitting a Service Request Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information After you describe your situation the TAC Servi...

Страница 15: ... benefit from these publications For current Cisco Press titles and other information go to Cisco Press at this URL http www ciscopress com Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments Each quarter Packet delivers coverage of the latest industry trends technology breakthroughs and Cisco products and solutions as well as network dep...

Страница 16: ...xvi Administrator s Guide for Cisco IPVC 3521 BRI Gateway Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway OL 7995 01 Preface Obtaining Additional Publications and Information ...

Страница 17: ...sco IPVC 3521 BRI Gateway Physical Description section on page 1 1 Cisco IPVC 3526 PRI Gateway See the About the Cisco IPVC 3526 PRI Gateway section on page 1 3 Cisco IPVC 3540 PRI Gateway See the About the Cisco IPVC 3540 PRI Gateway section on page 1 5 About the Cisco IPVC 3521 BRI Gateway Physical Description The Cisco IPVC 3521 BRI Gateway enables audio video and data communication between H 3...

Страница 18: ...activity 3 Connectivity LED Indicates the type of Ethernet interface that is used lights green when the Ethernet interface is 100BaseT off when the Ethernet interface is 10BaseT 4 Serial An EIA TIA 232 port that accepts a female DB 9 connector 5 RST Reset Button Restarts the gateway device 6 GK Reg LED Lights green when the gateway has an active registration with the gatekeeper 7 CD LED Lights gre...

Страница 19: ...ISDN network to IP voice callers The Cisco IPVC 3526 PRI Gateway supports one PRI ISDN port Figure 1 3 and Table 1 3 show and explain the gateway front panel Figure 1 4 and Table 1 4 show and explain the gateway rear panel Table 1 2 Cisco IPVC 3521 BRI Gateway Rear Panel Components Number Component Description 1 10 100BaseT Ethernet This port is not supported 2 BRI Ports Physical interface for the...

Страница 20: ...ty 3 Connectivity LED Indicates the type of Ethernet interface that is used lights green when the Ethernet interface is 100BaseT off when the Ethernet interface is 10BaseT 4 Serial An EIA TIA 232 port that accepts a female DB 9 connector 5 RST Reset Button Restarts the gateway device 6 GK Reg LED Lights green when the gateway has an active registration with the gatekeeper 7 CD LED Lights green whe...

Страница 21: ...stall the gateway module in slot 2 in the front of the chassis you must install the RTM in slot 2 in the rear of the chassis The Cisco IPVC 3544 chassis requires that the module installed in the top slot provide the system controls for the cPCI bus The gateway module has system capability and can be installed in top slot of the chassis or in one of the other slots When you install a gateway module...

Страница 22: ...DN ports Figure 1 5 and Table 1 5 show and explain a Cisco IPVC 3540 PRI Gateway module Cisco IPVC 3540 GW2P Figure 1 5 Cisco IPVC 3540 PRI Gateway Module Table 1 5 Cisco IPVC 3540 PRI Gateway Front Panel Components Component Description 10 100BaseT Ethernet port This is a full duplex Ethernet port that connects to the network through a standard RJ 45 connector Serial port This is an EIA TIA 232 p...

Страница 23: ...is LED lights up on when the gateway has an active registration with the gatekeeper CD The carrier direct CD LED lights green when all of the enabled PRI lines are connected and functioning When one of the enabled PRI line is not connected or malfunctioning the CD LED is off Alarm This LED indicates an error or loss of signal in one of the PRI lines It lights orange when the gateway fails the self...

Страница 24: ...the Cisco IPVC 3540 PRI Gateway RTM The RTM contains physical interfaces for two PRI lines and the physical interface that allows the gateway to communicate with the Cisco IPVC 3544 chassis You must install the RTM in the rear slot that corresponds to the slot in which you install the gateway For example when you install a gateway in slot four in the front of the chassis you must install the RTM i...

Страница 25: ...When this LED lights up it indicates that PRI port 2 is enabled and has an error free connection PRI Line 2 This is the physical interface for a PRI line The port accepts an RJ 48C connector When two PRI lines are connected to the gateway this interface serves as the second PRI line 10 100BaseT 2Ethernet This port is not supported 10 100BaseT 1Ethernet This port is not supported Alarm 1 The follow...

Страница 26: ...uration and trapping Diagnostics The Cisco IPVC 3500 Series Gateway features front and rear panel LED indicators that display status for the unit You can also access remote diagnostics of the unit through the Gateway interface Telnet SNMP or a serial port Network load balancing The Cisco IPVC 3500 Series Gateway supports load balancing on the network by communicating with a gatekeeper through H 32...

Страница 27: ...ual Tone Multi Frequency DTMF signals on the ISDN side and out of band H 245 messages on the IP side DTMF translation occurs for voice and video calls Dual video The Cisco IPVC 3500 Series Gateway supports dual video streams for a single call using TANDBERG Duo Video technology Dual video streams enable a screen to carry video images from one source while simultaneously displaying images from a se...

Страница 28: ...ly ISDN connection failure The Cisco IPVC 3500 Series Gateway responds to ISDN connection failure events by unregistering from its gatekeeper The gatekeeper is forced to send new IP to ISDN calls through a different gateway thus ensuring high call completion rates The gateway re registers to the gatekeeper when the ISDN connection is restored Downspeeding The Cisco IPVC 3500 Series Gateway feature...

Страница 29: ...BRI Gateway Supported ports 2 PRI ISDN port 1 PRI ISDN ports 4 BRI ISDN ports Supported video conferencing protocols H 320 H 323 using Stack v4 0 Supported audio codecs The term audio transcoded video calls refers to the process whereby an audio stream in a multimedia call can be transcoded from one codec type to another Basic and advanced audio coding supported codecs are G 711 G 722 G 722 1 G 72...

Страница 30: ...ts 1B video and data 23 ports 2B video and data 7 ports 6B video and data For 1 x PRI E1 line 30 ports voice 30 ports 1B video and data 15 ports 2B video and data 5 ports 6B video and data For 2 x PRI E1 lines 60 ports voice 30 ports 1B 2B video and data 10 ports 6B video and data For 1 x PRI T1 line 23 ports voice 23 ports 1B video and data 11 ports 2B video and data 3 ports 6B video and data For...

Страница 31: ... Kong ETSI PTP France Europe Taiwan VN6 Dialing France Austel 1 Dialing Australia KDD NTT Japan Hong Kong Dialing Hong Kong PRI interface PRI Gateways only Configurable E1 T1 PRI network interface Support for fractional E1 T1 channel selection Configurable as terminal side TE or network side NT device Configurable Long Haul PRI module supported in Japan only N A Switch information PRI Gateways onl...

Страница 32: ...ge 1 17 Multipoint conferencing See the About Multipoint Conferencing section on page 1 17 About Multimedia Conferencing The Cisco IPVC 3500 Series Gateway enables H 323 endpoints on the IP network to communicate with an H 320 terminal an ISDN phone or a regular phone on a circuit switched public network without having to connect directly to these networks The gateway allows all IP network termina...

Страница 33: ...to 1472 Kbps 23B bonding for T1 and up to 1920 Kbps 30B bonding for E1 see Figure 1 8 Figure 1 8 Multimedia Conferencing through the Gateway About Multipoint Conferencing Together with the Cisco IPVC 35xx MCU the Cisco IPVC 3500 Series Gateway enables H 320 ISDN terminals to participate in a mixed ISDN IP multipoint multimedia conference with IP network endpoints see Figure 1 9 For example when an...

Страница 34: ...3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway feature configurable E1 T1 PRI ISDN connections When configured as an E1 connection each port provides 30 B channels and one D signaling channel When configured as a T1 connection each port provides 23 B channels and one D signaling channel The type of line available depends on your local ISDN provider You configure the gateway PRI port to an E1 or ...

Страница 35: ...the BRI Gateway Directly to a PBX that Provides a BRI Line Figure 1 12 Connecting the PRI Gateway Directly to a Central Office Switch 92875 H 323 Terminal IP phone IP IP network Public BRI Central office switch Private Cisco IPVC Gateway Cisco IPVC chassis unit 92876 H 323 Terminal IP phone IP IP phone IP IP phone IP IP network Public Central office switch Private Cisco IPVC Gateway Cisco IPVC cha...

Страница 36: ... Connectivity page 1 21 About Call Handling Capacity Table 1 9 lists the maximum call handling capacity of the Cisco IPVC 3521 BRI Gateway for 4 x BRI lines 8 voice only calls or 8 video calls or any combination of the two Table 1 10 lists the maximum call handling capacity of the Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway when using one or two E1 PRI lines and one or two T1 PRI l...

Страница 37: ...correction purposes which also consume bandwidth Video traffic on the IP side does not include this additional load Opening an audio channel further reduces the bandwidth available to the video traffic For example a call at 384 Kbps actually has only 363 Kbps available to it Control and error correction account for the remaining 21 Kbps About Peer to Peer Connectivity The Cisco IPVC 3500 Series Ga...

Страница 38: ... s Guide for Cisco IPVC 3521 BRI Gateway Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway OL 7995 01 Chapter 1 Overview of the Cisco IPVC 3500 Series Gateway About Cisco IPVC 3500 Series Gateway Functionality ...

Страница 39: ... 2 9 Changing the Configuration Tool Login Password page 2 11 Connecting the Cisco IPVC 3521 BRI Gateway to the Network page 2 11 Connecting Cisco IPVC 3500 PRI Gateways to the Network page 2 12 Connecting PRI Lines to the Cisco IPVC 3500 PRI Gateways page 2 12 Connecting the Cisco IPVC 3500 Series Gateway to a Power Source page 2 12 Installing Online Help on the Network page 2 13 Starting the Gat...

Страница 40: ...telephone company that provides ISDN services for your local calling area and to which your equipment connects 2 Identify the ISDN provider you want to use as your Interexchange Carrier IEC for long distance calls Note The IEC and the LEC are different companies Often the LEC will contact the IEC and provision long distance service for you Verify that your LEC performs this task and contact an IEC...

Страница 41: ... Contents for the Cisco IPVC 3521 BRI Gateway section on page 2 3 Cisco IPVC 3526 PRI Gateway see the Verifying Package Contents for the Cisco IPVC 3526 PRI Gateway section on page 2 3 Cisco IPVC 3540 PRI Gateway see the Verifying Package Contents for the Cisco IPVC 3540 PRI Gateway section on page 2 4 Verifying Package Contents for the Cisco IPVC 3521 BRI Gateway Your Cisco IPVC 3521 BRI Gateway ...

Страница 42: ...ateway in a Rack You can install the Cisco IPVC 3521 BRI Gateway in a 19 inch rack The mounting kit supplied with the gateway includes two brackets for mounting the unit on a rack This section describes how to install the mounting brackets Procedure Step 1 Place the unit the right way up on a hard flat surface with the front panel facing you Step 2 Position a mounting bracket over the mounting hol...

Страница 43: ...ide of the gateway Step 5 Insert the unit into the 19 inch rack and secure Two screws are needed for each side These screws are not provided Note Make sure that the air vents in the sides of the unit are not blocked Installing the Cisco IPVC 3540 PRI Gateway The Cisco IPVC 3540 PRI Gateway has two components that you must install in the Cisco IPVC 3544 chassis the Cisco IPVC 3540 PRI Gateway modul...

Страница 44: ... lines must be disconnected 1 before unplugging the main power connector and or 2 while the housing is open Installing the PRI RTM in the Cisco IPVC 3544 Chassis Top Slot The top slot in the Cisco IPVC 3544 chassis is used to provide system functionality to the cPCI bus This functionality is embedded in the gateway module which connects to the bus through the RTM This section describes how to inst...

Страница 45: ...handles forward to secure the module in the slot Secure the PRI RTM screws Installing the PRI RTM in a Cisco IPVC 3544 Chassis Slot Other Than the Top Slot To install the PRI RTM in chassis slot two three or four perform the following steps Warning If the power to the chassis is on you must install the RTM before you install the Cisco IPVC 3540 PRI Gateway module Procedure Step 1 On the back of th...

Страница 46: ... one of the following If you are installing the gateway module in the chassis top slot make sure that the power to the chassis is off Skip to Step 5 there is no top slot front cover If you are installing the gateway module in slot two three or four and the power to the chassis is on the RTM must be installed before you install the gateway module Step 2 In the front of the chassis loosen the screws...

Страница 47: ...ank faceplates and cover panels serve three important functions they prevent exposure to hazardous voltages and currents inside the chassis they contain electromagnetic interference EMI that might disrupt other equipment and they direct the flow of cooling air through the chassis Do not operate the system unless all cards faceplates front covers and rear covers are in place Assigning the IP Addres...

Страница 48: ...puter monitor Note When the gateway is started for the first time two VxWorks banners appear every time the unit is started The configuration option appears after the second banner Step 5 When the message Press any key to start configuration appears on the screen press a key within six seconds An options list appears Step 6 At the prompt enter N and press Enter to select the to configure default n...

Страница 49: ...ds a new terminal emulator session begins on the computer monitor Step 3 After the second VxWorks banner scrolls across the screen the following message appears Press any Key to start the configuration Step 4 Press any key and then press Enter A menu appears Step 5 At the prompt enter p and press Enter to select change the configuration software password The Enter user name prompt appears Step 6 E...

Страница 50: ...BRI port accepts an RJ 45 connector Step 5 Connect the fourth ISDN line to the BRI Port 4 in the rear panel of the gateway The BRI port accepts an RJ 45 connector Connecting Cisco IPVC 3500 PRI Gateways to the Network The Cisco IPVC 3500 PRI Gateways can connect to the LAN only through the front panel The gateway supports a 10 100BaseT full duplex Ethernet interface through an RJ 45 connector Proc...

Страница 51: ...location with the Gateway interface This section describes how to install the online help files on your network Procedure Step 1 Identify or create a shared directory on the network in which you want to install the online help files Note Make sure that the Gateway interface for each gateway you install can access the shared directory Refer to your network operating system documentation for instruc...

Страница 52: ...igure Administrator level access Only one user can access the Gateway interface at one time Procedure Step 1 Start the web browser Step 2 In the URL field enter IP address Where IP address is the IP address assigned to the gateway for which you want to launch the Gateway interface The Gateway interface login page appears Step 3 In the Name field enter your user name Step 4 In the Password field en...

Страница 53: ... box appears b In the User name field enter or edit the user login name c In the Access Level field choose one of the following access levels Administrator Operator Read only d In the Password field enter or edit the password that the user uses to login to the Gateway interface e In the Confirm Password field re enter the password Step 4 Click Upload Deleting Gateway Interface Users In the Users t...

Страница 54: ...b Step 3 Locate the Date Time field and click Change The Change Time dialog box appears The date and time the gateway reports appears in the Set board time to field Table 2 2 Board and Device Basics Page Elements Element Description Model number Displays the model number of the gateway Location Field where you can specify where the gateway hardware is located Serial Number Displays the serial numb...

Страница 55: ... change d On the toolbar click Upload to save your changes Setting the Gateway Location You can install the gateway anywhere on your network including at a remote site The Basics tab of the Board section in the Gateway interface provides a field that you can use to identify the location where the gateway is located Procedure Step 1 On the sidebar click Board Step 2 Click the Basics tab Step 3 In t...

Страница 56: ...ault Administrator interface web server port For additional security you can configure the web server port as a different port number Procedure Step 1 In the Gateway interface on the sidebar click Board Step 2 Click the Web tab Table 2 3 Addressing Tab Fields Field Description IP Address The IP address you want to assign to the gateway Router IP field The router IP address you want the gateway to ...

Страница 57: ...directory_name program_folder If the directory is located on a web server enter http shared_directory_name program_folder Note The online help files are stored in the folder 3500gw by default The Gateway interface retrieves online help text from these files In the path statement include all directories in the path up to but not including 3500gw Step 4 Click Upload Configuring Gateway Security You ...

Страница 58: ...PCI bus functions for the chassis In the Gateway interface you can use the System section to monitor chassis functions remotely One of the functions the chassis performs is to monitor ambient temperature You can set temperature thresholds in the System section The chassis uses these thresholds to trigger a warning that the ambient temperature exceeds specification and when the temperature has retu...

Страница 59: ...o trigger changes in the ambient temperature status Low Enter the temperature value at which the gateway module turns off the chassis temperature alarm The value is measured in Celsius High Enter the temperature value above which the gateway module turns on the chassis temperature alarm The value is measured in Celsius Status section These LEDs provide information about chassis operation Power Thi...

Страница 60: ...you set this safe threshold to 35 C When after exceeding the critical threshold the operating temperature of the chassis falls to this value the temperature LED lights green During the temperature decent the LED blinks green for the first 5 C between the critical threshold and the safe threshold Step 5 Click Upload to save your changes Step 6 Click Refresh to refresh the Gateway interface System s...

Страница 61: ...configuration file Step 3 Click Upload to save these settings Step 4 On the sidebar click Gateway Step 5 Make sure that the settings in the Status Settings BRI or PRI Ports Calls Event Log and Statistics tabs are correct Step 6 Click Upload to save these settings Step 7 On the toolbar click Export Note A dialog box appears indicating that you are navigating away from the page without saving the ch...

Страница 62: ...ears in the File Name field Step 6 Click Import The file appears in the gateway category window and the Upload button is active Note You can open and change settings in any of the gateway category options without losing the original settings in the configuration file However you must click Upload on the toolbar to retain these setting before selecting another category Step 7 Click Upload to save t...

Страница 63: ...ains the settings you can view and configure in the Gateway interface Note There might be slight variations between the configuration options described in this section and the options appearing in the gateway you are working with Table 3 1 Gateway Interface Tabs Gateway Interface Tab Description Status Displays gateway resource usage information number of calls currently in progress and servicing ...

Страница 64: ...ent calls and servicing details Procedure Step 1 In the Gateway interface on the sidebar click Gateway if not already selected Step 2 Click the Status tab Table 3 2 lists the information that the fields in the Status tab display Statistics Displays specific system information such as call traces and debugging details Maintenance Provides access to maintenance mode in which you can prevent the gate...

Страница 65: ...atus Indicates the general status of the gateway OK or Failure In cases of failure a text description of the problem appears For example BRI or PRI connection remote side loss of frame alignment Gateway Resource Meter Overall Gateway usage Displays the rate of gateway resources currently in use CPU usage Displays the rate of CPU resources currently in use Audio transcoder usage Displays the rate o...

Страница 66: ...e toolbar click Refresh Configuring Gateway Settings In the Settings tab of the Gateway interface you can configure gatekeeper and Interactive Voice Response IVR addressing the type of connection to the IP network dialing delimiters media encoding decoding protocols Quality of Service levels which events cause the gateway to send SNMP traps gateway resource levels for T 120 enabled and audio trans...

Страница 67: ...th the gatekeeper You can configure the IP connectivity mode in the following two ways Using a gatekeeper The gateway registers with a gatekeeper and uses the gatekeeper for every call See Configuring the Gateway to Register With a Gatekeeper page 3 5 Peer to Peer The gateway connects directly to a peer device without the need for a gatekeeper Peer devices include Cisco CallManager Caution Changin...

Страница 68: ...ion rates The gateway re registers to the gatekeeper when the ISDN connected is restored Step 11 Select the Send load balancing messages RAI check box to enable the sending of RAI messages to the gatekeeper for the purpose of load balancing on the network If you select this option perform steps 12 and 13 Gatekeepers can perform load balancing on the network using feedback from the gateway in the f...

Страница 69: ... connected successfully If the call fails due to one of the H 323 call disconnect reasons see About Peer to Peer H 323 Call Disconnect Reasons page 3 8 the gateway tries each peer device in the Peer list section in order until the call is successfully connected The arrow moves to the peer device with which the call connection is successful If the gateway fails to connect the call after trying all ...

Страница 70: ...all or when the call is rejected with a disconnect reason When a gateway has scanned the Peer list section and still cannot connect a call then the following rules apply if at least one of the peers rejected the call due to capacity overload the call rejection reason towards the call originator is No Resources in all other cases the call rejection reason is Unreachable Destination Step 7 In the Pe...

Страница 71: ...d to the call transaction 12 Undefined reason for transaction failure 13 Call should be routed to a gatekeeper 14 Call should be forwarded 15 Call should be routed to an MC 16 Call deflection has occurred 17 Access denied 18 The called party is not registered at the destination 19 The calling party is not registered 20 The connection failed and a new one should be made 21 The called party has no H...

Страница 72: ... number Step 7 Select the IVR registers with gatekeeper check box to enable the internal IVR to register with the gatekeeper Step 8 In the IVR address field enter the IP address for the IVR system on the external device Step 9 In the Port field enter the port number for the IVR system on the external device The default port setting is 1620 Configuring Outgoing Call Delimiters In the Delimiters sec...

Страница 73: ... of audio protocols G 711 ISDN to G 723 1 IP G 723 1 IP to G 711 ISDN G 728 ISDN to G 711 IP G 711 IP to G 728 ISDN Note When your unit includes both a gateway and an Cisco IPVC 35xx MCU G 728 transcoding is supported on the Cisco IPVC 35xx MCU only Each audio codec differs in the audio quality compression and bit rates that it provides G 711 provides toll quality audio at 64 Kbps G 728 provides n...

Страница 74: ...tion of bandwidth is always at the expense of available video resources The requirements of the H 320 standard govern this reallocation it is not configured in the gateway The gateway simply decides whether or not to send T 120 capabilities You configure T 120 capabilities in the Advanced section of the Gateway interface Settings tab Configuring Encoding Decoding Protocols In the Media Modes secti...

Страница 75: ...ed minimum bit rate or to attempt to connect the call as a voice call In downspeeding when connection problems occur in mid call the gateway attempts to connect a video call at the specified lower bit rate When downspeeding is complete and the call is connected at the specified lower bit rate the gateway notifies the Internet Protocol IP endpoint of the new call rate Procedure Step 1 In the Gatewa...

Страница 76: ... field in the IP header contains eight bits and indicates the three abstract quality of service parameters Delay D Throughput T Reliability R You can use the abstract parameters to choose the actual service parameters when transmitting a datagram through a particular network The abstract parameters represent the three way trade off between low delay high throughput and high reliability Increasing ...

Страница 77: ... section Voice Priority 0 63 field enter a whole number from 0 to 63 to set the priority level of voice packets that the gateway sends out The default value is 46 for BRI gateways 34 for PRI gateways In the Video Priority 0 63 field enter a whole number from 0 to 63 to set the priority level of video packets that the gateway sends out The default value is 34 In the Data Priority 0 63 field enter a...

Страница 78: ...neous state Table 3 5 lists SNMP trap event types for the Cisco IPVC 3521 BRI Gateway Table 3 6 lists SNMP trap event types for the Cisco IPVC 3500 PRI Gateways Table 3 5 Cisco IPVC 3521 BRI Gateway SNMP Trap Event Types Event Type Trap Name Trap OID Trap is sent when State Severity RAI status raiStatus RV 0 1 A change in RAI status occurs TRUE Warning FALSE Clear Bad video badVideo RV 0 2 Corrupt...

Страница 79: ...RUE Major FALSE Clear Card extract Hot Swap cardExtractHotSwap RV 0 10 A card has been removed from the chassis under power or inserted into the chassis under power or when the gateway enters maintenance mode TRUE Critical FALSE Clear Abnormal disconnect abnormalDisconnect RV 0 11 A call has disconnected for a reason other than normal busy or no answer Warning ISDN downspeed isdnDownspeed RV 0 12 ...

Страница 80: ... has been rejected and the gateway is searching for an alternate peer Warning Call from peer rejected due to capacity peerCallRejectedCapacity RV 0 44 A call from a peer has been rejected because the gateway does not have enough resources available Warning Call to peer rejected by all listed peers peerCallRejectedByAll RV 0 45 A call to a peer has been rejected by all listed peers Major Call to pe...

Страница 81: ...n state change gkRegistrChange RV 0 5 A change occurs in the registration status of the gateway TRUE Clear FALSE Minor Loss of ISDN lossIsdn RV 0 6 A state change occurs for each enabled ISDN line TRUE Critical FALSE Clear Loss of Ethernet lossEthernet RV 0 7 The network returns after going down Indicates the time at which the network was restored TRUE Critical FALSE Clear Max resource meter maxHi...

Страница 82: ...completed even when call volume is high ISDN rollover requires support by the PSTN switch application and presumes the availability of a pool of stacked gateways across the managed network You can enable ISDN Rollover only after you set the gateway to work with the T1 interface Major Call to peer rejected trying alternate peerCallRejected RV 0 43 A call to a peer has been rejected and the gateway ...

Страница 83: ...alls Note This section applies only to Cisco IPVC 3500 PRI Gateways In the Resources section of the Settings tab you can reserve gateway resources for T 120 enabled calls and for audio transcoded video calls This section also displays the total number of calls that the gateway supports at specified bandwidths The gateway provides full end to end T 120 data collaboration sessions provided that all ...

Страница 84: ...stream in a multimedia call is transcoded from one codec type to another Step 6 In the Total call capacity in n calls of n Kbps field choose a bandwidth Step 7 Click Update total call capacity The number of calls that the gateway can support at that bandwidth automatically appears Configuring Gateway Encryption The gateway supports encrypted calls over IP networks The encryption conforms to the H ...

Страница 85: ... the Gateway interface on the sidebar click Gateway if not already selected Step 2 Click the Settings tab Step 3 Click the Security button Step 4 Select the Support encryption check box to enable gateway support for H 235 encryption for H 323 calls Step 5 In the Encryption mode field choose one of the following settings Best effort Encryption required Strong encryption required Configuring Advance...

Страница 86: ...OL 7995 01 Chapter 3 Configuring the Cisco IPVC 3500 Series Gateway Configuring Gateway Settings Procedure Step 1 In the Gateway interface on the sidebar click Gateway if not already selected Step 2 Click the Settings tab Step 3 Click the Advanced button Table 3 8 explains the settings you can configure in this section ...

Страница 87: ...the ISDN network empty Ignore caller bearer rate and force service rate Select to configure the gateway to ignore the incoming call bearer rate and to use instead the bandwidth specified for the service in the Services tab to process the call If the service bit rate is set to Auto the gateway process the call at the bearer rate Unselect to allow an administrator to limit a specific service to a ma...

Страница 88: ...nnect reason and the gateway attempt at redialing Note The auto redial mechanism operates independently of the downspeeding functionality The ISDN disconnect reasons are 0x12 No user responding 0x39 Bearer capacity not authorized 0x3a Bearer capacity not presently available 0x3f Reports a service or option not available event only when no other cause in the service or option not available class ap...

Страница 89: ...ide a Q 931 sub addressing information element for IP address resolution by the gatekeeper Sub addressing can also be used for implementing ISDN fallback when not enough bandwidth is available for routing an IP oriented call over IP Select for the gateway to take the E 164 number from the Q 931information element sub address field and forward it to the gatekeeper for address resolution Sub address...

Страница 90: ... feature Which is defined in advanced commands See Configuring Advanced Commands page 3 32 for more information When the total number of available B channels in both PRI ports falls below the number specified in this field the gateway sends a busy out message to the PSTN switch for each of the remaining B channels The switch application busies out the remaining B channels and diverts new calls to ...

Страница 91: ...209 Hz and 697 Hz Restrict Gateway use to MCU conferences only Select for the gateway to send and receive calls to and from a Cisco IPVC 35xx MCU only This setting together with a scheduling server reserves resources for scheduled conferences only Support Presentation Restriction Select to enable support for the presentation restriction feature This feature responds to an instruction from the call...

Страница 92: ...ch pair of tones decodes the number dialed and makes the connection About DTMF Detection on IP to ISDN Calls The gateway passes incoming in band DTMF signals to the ISDN side endpoint unchanged In addition you can configure the gateway to convert H 245 out of band DTMF signals from the IP side to in band signals on the ISDN side Figure 3 2 illustrates IP to ISDN DTMF processing Figure 3 2 IP to IS...

Страница 93: ... Gateway if not already selected Step 2 Click the Settings tab Step 3 Click the Advanced button Step 4 In the IP to ISDN Calls section you can select the Translate DTMF from IP out of band H 245 to ISDN in band ISDN G 711 only check box When selected the gateway performs the following Converts H 245 out of band DTMF signals coming from the H 323 IP side endpoint to in band signals on the ISDN side...

Страница 94: ...ls is the default setting Note Enabling DTMF detection for video calls reduces the number of supported calls at 128 Kbps from 30 to 22 Configuring Advanced Commands You can send text based commands to a Cisco IPVC 3500 Series Gateway for enhanced control You can use these advanced commands to change certain settings in real time and monitor information such as debug information Advanced commands a...

Страница 95: ...ateway to Cisco IPVC 35xx MCU calls Parameters Enable Disable NotifyLevel Changes the type and number of debug messages that are generated Parameters 0 Disables gateway logs 3 default Fatal error Gateway can no longer provide service a problem affecting user functionality for example call connect failure or no resources available or status prints for Customer Support use 6 Debugging 8 Extended deb...

Страница 96: ...the call restricted or non restricted A service prefix identifies a service The service prefix is an identifier string that can have up to 31 characters Valid characters are 0 to 9 pound asterisk or comma You access a service by dialing the service prefix before the phone number of the destination For example 9 would be identified by the gateway as a service prefix if you dialed 9 5673994 Note If ...

Страница 97: ...nd comma Note Since the comma cannot be used in the Party number field of the Cisco IPVC 35xx MCU Conference Control interface we recommend that you do not use the comma as a prefix in gateway fields Step 5 In the Description field enter or edit the description of the service up to 31 characters in length Step 6 In the Call type field select the call type for this service Video or Voice Step 7 In ...

Страница 98: ...e uploads your settings to the services database Deleting Gateway Services In the Settings tab you can delete existing services Procedure Step 1 In the Gateway interface on the sidebar click Gateway if not already selected Step 2 Click the Services tab Step 3 Select a service and click Delete Configuring BRI or PRI Port Settings In the BRI Port or PRI Port tabs you can configure physical line sett...

Страница 99: ...f the phone numbers assigned to this line are 6775380 to 6775411 enter 380 411 You can type a maximum of 31 digits in each text field Step 5 PRI gateways only Optional In the Local Area Code field enter the local area code for the phone numbers You can enter up to 16 digits Step 6 PRI gateways only Optional Select the Strip Local Area Code check box if you want the gateway to strip local area code...

Страница 100: ...ose the required number of SPID values Step 11 In the SPID 1 field enter the first SPID value Step 12 In the SPID 2 field enter the second SPID value Step 13 Click OK to upload these changes to the gateway database and close the SPIDs dialog box Step 14 Click Advanced to enable or disable alerting Layer 1 line hunting or configure a static Terminal Equipment Identifier TEI The Advanced dialog box ...

Страница 101: ...Gateways In the Physical Interface section of the PRI Port tabs you can configure the physical line properties of the specified PRI port Procedure Step 1 In the Gateway interface on the sidebar click Gateway if not already selected Step 2 Click the applicable PRI Port tab Step 3 Click the Physical Interface button Step 4 Select the Same as Port check box if you want to duplicate physical interface...

Страница 102: ...channels that are essential for communication Note You can click Select All to select all fractional channels or Deselect All to unselect all fractional channels Step 14 Click OK to close the Fractional dialog box Step 15 For all gateways click Advanced to configure line coding framing and signaling type The Advanced dialog box appears Step 16 In the Line coding field choose the type of modulation...

Страница 103: ...gured NSF settings or choose to configure their own NSF Information Element using service provider information You can specify the following information in the NSF The service providers with which you want their network to work Table 3 11 Advanced ISDN Tab Details Column or Field Description Prefix Displays the prefix of the advanced ISDN entry Description Displays a brief description of the advan...

Страница 104: ...fields The values entered in these fields represent instructions contained in outgoing Q 931 Setup messages Figure 3 4 represents the format of such instructions Table 3 12 describes the function of each of the Octet fields 8 7 6 5 4 Network specific facilities Information element identifier Length of network specific facilities contents Network identification IA5 characters Parameterized field Le...

Страница 105: ...s dialog box The standard NPI values are For an NPI setting of Unknown the standard integer value is 0 and the standard binary value is 0 For an NPI setting of ISDN Public the standard integer value is 1 and the standard binary value is 0001 For an NPI setting of Private the standard integer value is 9 and the standard binary value is 1001 The standard TON values are For a TON setting of unknown t...

Страница 106: ...ctet 4 is used to hold information representing coding values for features and services Service providers supply the coding values The octet contains eight bits numbered from 1 to 8 and from right to left so that Bit 1 is rightmost and Bit 8 is leftmost The bits contain values representing the following functions Bits 1 5 The binary Facility Coding Value for the specified feature or service Bit 6 ...

Страница 107: ... bits contain values representing the following functions Bits 1 7 represents the parameterized field coding value Bit 8 is for future use Table 3 12 Octet Field Functions Octet Function Table 3 13 Feature Binary Facility Coding Values Bits Feature 5 4 3 2 1 0 0 0 0 1 Calling party number preferred 0 0 0 1 0 Billing number preferred 0 0 0 1 1 Calling party number only 0 0 1 0 0 Billing number only...

Страница 108: ...0 1 0 1 1 Reserved 0 1 1 0 0 Reserved 1 0 0 0 0 Multiquest 1 0 0 0 1 Reserved 1 0 0 1 0 800 1 0 0 1 1 Test call 1 0 1 0 0 Inward Wide Area Telecommunications Service INWATS 1 0 1 0 1 SDN K Key Service Protection 1 0 1 1 1 Call Redirection Service Table 3 14 Service Binary Facility Coding Values Bits Feature 5 4 3 2 1 Table 3 15 Parameterized Field Binary Coding Values Bit s Parameterized Field 7 6...

Страница 109: ...information element Step 8 In the Type of Number TON field choose a TON code for the ISDN information element Step 9 In the Maximum digits send field enter the number of digits up to a maximum of 32 allowed for outbound dialing Step 10 In the DN Manipulation field you can configure the stripping of the ISDN information prefix number from the outbound dialed number The options in this field vary ac...

Страница 110: ...ings f In the Type field choose Binary feature or Binary service and then in the Facility Coding Value field enter a value or In the Type field choose Parameterized and then in the Parameterized Field field enter a value or In the Type field choose Custom and then in the Octet 4 and Octet 5 field if applicable enter a value Note When you select Binary feature or Binary service in the Type field th...

Страница 111: ...s option is unavailable in gateways that support only one BRI or PRI port Step 5 In the Enable inbound routing methods section you can select incoming call routing methods in the following order of priority DID When selected enables Direct Inward Dialing to an endpoint TCS4 When selected enables TCS4 dialing This setting does not apply to voice calls IVR When selected enables the Interactive Voice...

Страница 112: ...t tab Step 3 Click the Supported Services button Step 4 Select the Same as Port check box if you want to duplicate settings from another BRI or PRI port that you choose from the field When selected you cannot modify any settings in this section This option is unavailable in gateways that support only one BRI or PRI port Step 5 To enable or disable a service for this BRI or PRI port select it and c...

Страница 113: ...shing Call Information You can configure the Gateway interface to refresh information that appears in the Calls tab every ten seconds Procedure Step 1 In the Calls tab select the Auto Refresh check box Viewing Call Details In the Calls tab you can view detailed information for each call currently defined in the gateway Procedure Step 1 In the Calls tab select a call and click Details The Call Deta...

Страница 114: ...ze B channels in cases of poor call quality Caution Use this option with extreme caution Resynchronizing B channels can cause a call to disconnect Audio Displays the audio transcoding protocol and the bandwidth of the voice calls in both directions between the source endpoint and the gateway Video Displays the video transcoding protocol the frame format and the bandwidth of the video calls in both...

Страница 115: ...everity Displays the severity of the reported event IP Displays the IP address of the destination endpoint of the call Packet Loss Displays the rate of packet loss in communication from the IP side of the call to the gateway regardless of whether the source endpoint is located on an ISDN or IP network Encryption Indicates the encryption algorithm in use for the call if any Audio Displays the audio...

Страница 116: ... both gateway PRI ports ICMP in message counter Displays the number of Internet Control Message Protocol ICMP packets received UDP in datagram counter Displays the number of User Datagram Protocol UDP packets received Packet loss counter Displays the number of lost packets Packet late counter Displays the number of late packets Accumulated time of B channel usage Displays the total B channel usage...

Страница 117: ...IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway OL 7995 01 Chapter 3 Configuring the Cisco IPVC 3500 Series Gateway Configuring Gateway Maintenance Tasks To enter maintenance mode click Enter Maintenance Mode To exit maintenance mode click Exit Maintenance Mode ...

Страница 118: ...strator s Guide for Cisco IPVC 3521 BRI Gateway Cisco IPVC 3526 PRI Gateway and Cisco IPVC 3540 PRI Gateway OL 7995 01 Chapter 3 Configuring the Cisco IPVC 3500 Series Gateway Configuring Gateway Maintenance Tasks ...

Страница 119: ... define different call types and bandwidths for IP network endpoints The services are identified by service prefixes The network administrator in charge of the H 323 network is responsible for defining services and informing users of available services See the About Gateway Services section on page 3 34 for more information Note A service prefix should not be the same as the first digits of an IP ...

Страница 120: ...minal on the ISDN network Both B channels have the same number This number string consists of 82 The service prefix for a 2B video call 1816455318 The destination phone number including the area code The second number delimiter The second number delimiter tells the gateway to dial the destination phone number a second time Dialing Example 5 2B video calls The number string 821816455318 1816455319 ...

Страница 121: ...rent numbers PRI ISDN lines have 23 T1 or 30 E1 channels that may be identified by the same number or by a range of numbers When a terminal or phone on the ISDN network wants to reach an IP endpoint it has to dial at least one of the phone numbers assigned to the ISDN line connected to the gateway PRI or BRI ISDN port About Incoming Call Routing When a call originating on the ISDN network reaches ...

Страница 122: ...N number the call routes through the gateway ISDN port connected to the line with the MSN service to the endpoint that registered using the requested number Sub addressing Sub addressing is a one stage DID dialing mechanism in which a phone sends two numbers One number is for routing on the circuit switched network The other number is forwarded to the gateway inside a Q 931 sub addressing informat...

Страница 123: ...int by responding with the dialer to prompts from the IVR system If the caller appropriately enters the destination endpoint phone number the IVR connects the caller to the requested IP network endpoint Otherwise the call can be forwarded to an operator The IVR call transfer is enabled by a proprietary mechanism that the gateway uses to transfer a call from one IP network endpoint to another The g...

Страница 124: ...f an endpoint that is online and currently not busy the IVR connects the call to the requested endpoint Dialing Example 10 Dialing to an IP network endpoint through the IVR The number string 5645000 wait for the IVR to respond 5561 is a call through an IVR routing mechanism This number string consists of 5645000 The gateway phone number 5561 The number of the requested endpoint This is required by...

Страница 125: ...th Outbound Calls page 5 4 About Problems with Inbound Calls page 5 4 Monitoring from a Remote Site page 5 6 Using the Hyperterminal Configuration Commands page 5 7 About Problems Encountered Setting the IP Address This section identifies problems that you can have assigning an IP address to a new gateway and suggests possible solutions Why can t I access the gateway through the serial port Inform...

Страница 126: ...e If you press any key an interactive prompt appears on the screen and the boot up process stops You must restart the gateway and wait for the second prompt to configure the IP address To restart the gateway do one of the following Press Ctrl x Press the recessed RST button on the gateway front panel About LED Indications This section identifies problems that the LEDs can indicate and suggests pos...

Страница 127: ...ect LED indicates that the PRI port is enabled and that the connection with the service provider is functioning properly The LED lights up when all of the gateway s PRI ports are enabled and have functioning connections The LED is off when one port is malfunctioning or the line is not connected For Cisco IPVC 3540 PRI Gateway modules the LED lights up when both Ports have functioning connections b...

Страница 128: ...r the call If the call is a voice call the service should be configured for voice only Make sure that the call initiator is correctly dialing the number Make sure that the dialing endpoint is registered with a gatekeeper For long distance calls make sure that the BRI or PRI service is configured to support long distance calls Make sure that the service is registered with the gatekeeper The BRI or ...

Страница 129: ... numbers If the service specifies seven significant digits in the number the service provider must sends seven digit numbers When TCS4 is used why do TCS4 calls not reach the requested terminal The TCS4 number might not be registered with the gatekeeper or the gateway is improperly configured Make sure that theTCS4 number is associated with an endpoint in the gatekeeper registration table Make sur...

Страница 130: ...age in the Gateway interface You can access this page from any computer on the LAN and monitor the module for connectivity or communication problems Procedure Step 1 Launch a Java based web browser Step 2 In the address or URL field enter the IP address of the gateway that you want to monitor The Gateway interface appears Step 3 In the User Name field enter a valid user name Step 4 In the Password...

Страница 131: ...LED Description Link LED This LED located nearest to the model number on the front panel lights green when there is an Ethernet connection between the gateway device and the network Connectivity LED This LED indicates the type of Ethernet interface that is used The LED lights green when the Ethernet interface is 100BaseT The LED is off when the Ethernet interface is 10BaseT GK Reg LED The LED ligh...

Страница 132: ... Cisco IPVC 3500 Series Gateway front panel click the Reset button on the toolbar of the LED Monitoring tab of the Gateway interface Board section or press Ctrl x on the keyboard for the terminal emulator A log of the auto boot events appears Step 5 When the message Press any key to start configuration appears on the screen press any key within six seconds The following command line options appear...

Страница 133: ... IPVC 3521 BRI Gateways You can use these advanced commands to set echo cancellation for the Cisco IPVC 3521 BRI Gateway To set echo cancellation perform the following steps Procedure Step 1 At the prompt for the command line options press A to display the advanced command menu Step 2 Press 1 to enable or disable echo cancellation for voice only calls and then press Enter Step 3 At the 0 1 disable...

Страница 134: ...press Enter Step 3 At the BRI port prompt select the BRI port you want to configure and then press Enter Note This prompt does not appear when only one BRI port is connected Step 4 At the BRI Wire Type prompt do one of the following Enter 1 when the BRI port is connected to an E1 facility Enter 2 when the BRI port is connected to an T1 facility and Press Enter Step 5 At the BRI NT TE Mode prompt d...

Страница 135: ...nded to the line format option that your service provider instructs you to use and then press Enter Step 12 At the BRI Signaling mode prompt enter the number appended to the signaling format option that your service provider instructs you to use and then press Enter Setting T 120 Data Collaboration Capability From the command line you can use advanced commands to set the T 120 data collaboration c...

Страница 136: ...working mode prompt select one of the following Press 1 to configure the gateway for half duplex operation Press 2 to configure the gateway for full duplex operation Press 3 to configure the gateway to negotiate the working mode with the router or switch This is the default setting Press any other key to return to the main menu without making changes Step 4 Press Enter Step 5 At the Choose Speed w...

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