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Cisco Analog Telephone Adapter 187 Administration Guide for SIP 1.0

OL-21862-01

Preface

Cisco Unified Communications Manager Business Edition

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Summary of Contents for ATA 187

Page 1: ...0 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 Text Part Number OL 21862 01 Text Part Number ...

Page 2: ...terference to radio or television communications at your own expense You can determine whether your equipment is causing interference by turning it off If the interference stops it was probably caused by the Cisco equipment or one of its peripheral devices If the equipment causes interference to radio or television reception try to correct the interference by using one or more of the following mea...

Page 3: ... 7 Modem Standards 1 7 Fax Services 1 8 Methods Supported 1 8 Supplementary Services 1 9 Installation and Configuration Overview 1 9 Preparing to Install the ATA 187 on Your Network 2 1 Understanding Interactions with Other Cisco Unified IP Communications Products 2 1 Understanding How the ATA 187 Interacts with Cisco Unified Communications Manager 2 2 Providing Power to the ATA 187 2 2 Power Guid...

Page 4: ...rvices 5 1 Using Fax Mode 5 1 Fax Modem Standards 5 1 Fax Modem Speeds 5 2 Troubleshooting and Maintenance 6 1 Resolving Startup Problems 6 1 Symptom The ATA 187 Does Not Go Through its Normal Startup Process 6 1 Symptom The ATA 187 Does Not Register with Cisco Unified Communications Manager 6 2 Checking Network Connectivity 6 2 Verifying TFTP Server Settings 6 2 Verifying DNS Settings 6 3 Verifyi...

Page 5: ...Services 7 1 Attended Transfer 7 2 Call Pickup 7 2 Caller ID 7 2 Call Waiting Caller ID 7 2 Call Hold 7 2 Group Call Pickup 7 3 Meet Me Conference 7 3 Privacy 7 3 Shared Line 7 3 Speed Dial 7 4 Redial 7 4 Unattended Transfer 7 4 Semi unattended Transfer 7 4 Fully Unattended Transfer 7 5 Voice Mail Indication 7 5 Voice Messaging System 7 5 Making a Conference Call in the United States 7 5 Making a ...

Page 6: ...Specifications A 1 Physical Specifications A 1 Electrical Specifications A 2 Environmental Specifications A 2 Physical Interfaces A 2 Ringing Characteristics A 3 Software Specifications A 3 SIP Compliance Reference Information A 4 Recommended ATA 187 Tone Parameter Values by Country B 1 G L O S S A R Y I N D E X ...

Page 7: ...nction on the network and require an understanding of IP networking and telephony concepts Organization This manual is organized as follows Chapter 1 Cisco ATA 187 Analog Telephone Adapter Overview Provides descriptions of hardware and software features of the ATA 187 along with a brief overview of the Session Initiation Protocol SIP Chapter 2 Preparing to Install the ATA 187 on Your Network Provi...

Page 8: ...iance and Safety Information for the Cisco ATA 187 Cisco ATA 187 Analog Telephone Adaptor Release Notes Cisco Unified Communications Manager These publications are available at the following URL http www cisco com en US products sw voicesw ps556 tsd_products_support_series_home html Chapter 5 Configuring and Debugging Fax Services Provides instructions for configuring both ports of the ATA 187 to ...

Page 9: ...use encryption Importers exporters distributors and users are responsible for compliance with U S and local country laws By using this product you agree to comply with applicable laws and regulations If you are unable to comply with U S and local laws return this product immediately Further information regarding U S export regulations may be found at http www access gpo gov bis ear ear_data html D...

Page 10: ...uipment damage or loss of data Warning Means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents The symbol represents the key labeled Control for example the key combination D in a screen display means hold down the Control key while...

Page 11: ...iation Protocol SIP The ATA 187 analog telephone adaptors are handset to Ethernet adaptors that allow regular analog phones to operate on IP based telephony networks The ATA 187 support two voice ports each with an independent phone number The ATA 187 also has an RJ 45 10 100BASE T data port This section covers these topics Session Initiation Protocol Overview page 1 2 Hardware Overview page 1 5 S...

Page 12: ...ocols SIP is designed to address the functions of signaling and session management within a packet telephony network Signaling allows call information to be carried across network boundaries Session management provides the ability to control the attributes of an end to end call Note SIP for the ATA 187 is compliant with RFC2543 This section contains these topics SIP Capabilities page 1 2 Component...

Page 13: ... end of a call SIP terminates the sessions between all parties Conferences can consist of two or more users and can be established using multicast or multiple unicast sessions Components of SIP SIP is a peer to peer protocol The peers in a session are called User Agents UAs A user agent can function in one of these roles User agent client UAC A client application that initiates the SIP request Use...

Page 14: ...roxy server is an intermediate device that receives SIP requests from a client and then forwards the requests on the client s behalf Proxy servers receive SIP messages and forward them to the next SIP server in the network Proxy servers can provide functions such as authentication authorization network access control routing reliable request retransmission and security Redirect server Receives SIP...

Page 15: ...ssions and both ports can be used simultaneously The ATA 187 has one network port an RJ 45 10 100BASE T data port to connect an Ethernet capable device such as a computer to the network Note The ATA 187 performs auto negotiation for duplexity and speed and is capable of 10 100 Mbps full duplex operation Software Features The ATA 187 supports these protocols services and methods Secure Real Time Tr...

Page 16: ...8 fax relay feature enables devices to use fax machines to send files over the IP network In general when a fax is received it is converted to an image sent to the T 38 fax device and converted back to an analog fax signal T 38 fax relays configured with voice gateways decode or demodulate the fax signals before they are transported over IP With the SIP call control protocol the T 38 fax relay is ...

Page 17: ...187 configuration by Cisco Unified Communications Manager configuration interface VLAN configuration Cisco Discovery Protocol CDP Low bit rate codec selection User authentication Configurable tones dial tone busy tone alert tone reorder tone call waiting tone Dial plans SIP proxy server redundancy Privacy features User configurable call waiting permanent default setting Comfort noise during silent...

Page 18: ...he T 38 fax relay feature enables devices to use fax machines to send files over the IP network In general when a fax is received it is converted to an image sent to the T 38 fax device and converted back to an analog fax signal T 38 fax relays configured with voice gateways decode or demodulate the fax signals before they are transported over IP Note Success of fax transmission depends on network...

Page 19: ...call Call waiting Call forwarding Calling line identification Unattended transfer Attended transfer Shared Line SpeedDial MeetMe Pick Up Redial Installation and Configuration Overview Table 1 1 provides the basic steps required to install and configure the ATA 187 to make it operational in a typical SIP environment where a large number of ATA 187s must be deployed Table 1 1 Overview of the Steps R...

Page 20: ...1 10 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 OL 21862 01 Chapter 1 Cisco ATA 187 Analog Telephone Adaptor Overview Installation and Configuration Overview ...

Page 21: ...icesw index html This chapter provides an overview of the interaction between the ATA 187 and other key components of the Voice over IP VoIP network It includes these topics Understanding Interactions with Other Cisco Unified IP Communications Products page 2 1 Providing Power to the ATA 187 page 2 2 Understanding Phone Configuration Files page 2 3 Understanding the ATA 187 Startup Process page 2 ...

Page 22: ...ons Manager and a phone For information about configuring Cisco Unified Communications Manager to work with the IP devices described in this chapter see Cisco Unified Communications Manager Administration Guide Cisco Unified Communications Manager System Guide and Cisco Unified Communications Manager Security Guide Providing Power to the ATA 187 The ATA 187 is powered with external power External ...

Page 23: ...e is set to Authenticated or Encrypted but the phone has not received a CTL file the phone tries four times to obtain it so it can register securely Note Cisco Extension Mobility Cross Cluster is an exception in that the phone permits a TLS connection to Cisco Unified Communications Manager for secure signaling even without the CTL file If you configure security related settings in Cisco Unified C...

Page 24: ...87 goes through a standard startup process as described in Table 2 1 Depending on your specific network configuration not all of these process steps may occur on your ATA 187 Table 2 1 ATA 187 Startup Process Task Purpose Related Topics 1 Obtaining Power The ATA 187 uses external power See Providing Power to the ATA 187 page 2 2 2 Loading the Stored Image The ATA 187 has non volatile flash memory ...

Page 25: ...rstanding Phone Configuration Files page 2 3 6 Contacting Cisco Unified Communications Manager The configuration file defines how the ATA 187 communicates with Cisco Unified Communications Manager and provides a device with its load ID After obtaining the file from the TFTP server the device attempts to make a connection to the highest priority Cisco Unified Communications Manager on the list If t...

Page 26: ... as described in Cisco Unified Communications Manager Security Guide For information about enabling auto registration see the Enabling Auto Registration in the Cisco Unified Communications Manager Administration Guide Note When you configure the cluster for mixed mode through the Cisco CTL client auto registration is automatically disabled When you configure the cluster for nonsecure mode through ...

Page 27: ...opics Adding the ATA 187 with Auto Registration page 2 6 Determining the MAC Address of an ATA 187 Several of the procedures that are described in this manual require you to determine the MAC address of an ATA 187 You can determine the MAC address for a device in any of these ways Look at the MAC label on the back of the device Display the web page for the device and click the Device Information h...

Page 28: ...2 8 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 OL 21862 01 Chapter 2 Preparing to Install the ATA 187 on Your Network Determining the MAC Address of an ATA 187 ...

Page 29: ... is in place see Figure 3 1 and follow the procedure to install the ATA 187 Figure 3 1 Cisco ATA Rear Panel Connections Network Requirements The ATA 187 acts as an endpoint on an IP telephony network The following equipment is required Call Control system Voice packet gateway Required if you are connecting to the Public Switched Telephone Network PSTN A gateway is not required if an analog key sys...

Page 30: ...rves as the main disconnecting device Warning Do not work on the system or connect or disconnect cables during periods of lightning activity Warning To avoid electric shock do not connect safety extra low voltage SELV circuits to telephone network voltage TNV circuits LAN ports contain SELV circuits and WAN ports contain TNV circuits Some LAN and WAN ports both use RJ 45 connectors Use caution whe...

Page 31: ... there is activity on that line Verifying the ATA 187 Startup Process After the ATA 187 has power connected to it the phone begins its startup process by cycling through these steps 1 The LEDs are on a Power b Line 1 c Line 2 d Set Up The ATA 187 boots up in this step it may take up to one minute 2 The LEDs flash The ATA 187 is launching its application in this step 3 Only the Power LED is on The ...

Page 32: ...s establish and maintain authenticated communication streams between the phone and the Cisco Unified Communications Manager server and digitally sign files before they are delivered For more information about the security features see the Cisco Unified Communications Manager Security Guide You can initiate the installation of a Locally Significant Certificate LSC from the Security Configuration me...

Page 33: ...dset headset or speakerphone indicates that a user has one or more new voice messages on a line Note The stutter tone is line specific You hear it only when using the line with the waiting messages For more information refer to Cisco Unified Communications Manager Administration Guide Message Waiting Configuration Cisco Unified Communications Manager System Guide Voice Mail Connectivity to Cisco U...

Page 34: ...Communications System Guide Understanding Directory Numbers Caller ID Displays caller identification such as a phone number name or other descriptive text on the phone screen For more information refer to Cisco Unified Communications Manager Administration Guide Cisco Unified IP Phone Configurations Cisco Unified Communications Manager System Guide Understanding Route Plans Cisco Unified Communica...

Page 35: ...or information Meet Me conference Allows a user to host a Meet Me conference in which other participants call a predetermined number at a scheduled time For more information refer to Cisco Unified Communications Manager Administration Guide Meet Me Number Pattern Configuration Message Waiting Defines directory numbers for message waiting on and message waiting off indicator A directly connected vo...

Page 36: ... Unified Communications Manager System Guide Understanding Directory Numbers Speed dialing Allows users to speed dial a phone number by entering an assigned index code 1 to 9 on the phone keypad Note You can use Speed Dialing while on hook or off hook Users assign index codes from the User Options web pages For more information refer to Cisco Unified Communications Manager Administration Guide Cis...

Page 37: ...d Phone Load Name CDP and Web Access Table 4 2 Configuration Information Configuration Window Path Enterprise Phone Configuration window System Enterprise Phone Configuration Common Phone Profile window Device Device Settings Common Phone Profile Phone Configuration window Device Phone Product Specific Configuration portion of window Table 4 3 Configuration Parameters for the ATA 187 Parameter Des...

Page 38: ... On Off Fax Mode The Cisco ATA supports two fax modes Fax Pass Through Allows fax and modem traffic to pass through a voice port T 38 Fax Relay Allows for a more robust protocol for fax transmission over packet networks Hookflash Timer 100 ms to 1500 ms Hookflash Timer The time to validate hookflash event Impedance The ATA 187 provides multiple impedance values such as 600 ohm for use in the Unite...

Page 39: ...ubscribe to services that are accessible from an ATA 187 You can add users to Cisco Unified Communications Manager using either of these methods To add users individually choose User Management End User from Cisco Unified Communications Manager Administration Refer to Cisco Unified Communications Manager Administration Guide for more information about adding users Refer to Cisco Unified Communicat...

Page 40: ...4 8 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 OL 21862 01 Chapter 4 Configuring the ATA 187 Adding Users to Cisco Unified Communications Manager ...

Page 41: ...ndard fax terminals communicating over SIP networks T 38 fax relay mode provides a more reliable and error free method of sending faxes over an IP network Using Fax Mode You can choose the preferred fax mode on the phone configuration page of the Unified CM administration page From the fax mode pull down window choose one of the following modes Fax pass through T 38 fax relay You can set the Fax E...

Page 42: ...r 5 Configuring Fax Services Using Fax Mode The ATA 187 supports the following fax modem standards ITU T V 34 ITU T V 34 Annex 12 K56flex V 21 V 22 V 23 V 32 V 32bis V 44 V 90 V 92 Fax Modem Speeds The ATA 187 supports the following fax modem speeds 14 4 kb s 12 kb s 9 6 kb s 7 2 kb s 4 8 kb s 2 4 kb s ...

Page 43: ...alling the ATA 187 page 3 3 If the phone does not start up properly see the following sections for troubleshooting information Symptom The ATA 187 Does Not Go Through its Normal Startup Process page 6 1 Symptom The ATA 187 Does Not Register with Cisco Unified Communications Manager page 6 2 Symptom ATA 187 Unable to Obtain IP Address page 6 4 Symptom The ATA 187 Does Not Go Through its Normal Star...

Page 44: ...ing the reason the phone is unable to start up properly Registering the Phone with Cisco Unified Communications Manager page 6 4 Checking Network Connectivity page 6 2 Verifying TFTP Server Settings page 6 2 Verifying DNS Settings page 6 3 Verifying Cisco Unified Communications Manager Settings page 6 3 Cisco Unified Communications Manager and TFTP Services Are Not Running page 6 3 Creating a New ...

Page 45: ...ou are experiencing a system wide failure and that other phones and devices are unable to start up properly If the Cisco Unified Communications Manager service is not running all devices on the network that rely on it to make phone calls will be affected If the TFTP service is not running many devices will not be able to start up successfully To start a service follow these steps Procedure Step 1 ...

Page 46: ...e no longer accessible from the phone The directory numbers are still assigned to the phone in the Cisco Unified Communications Manager database but there is no button on the phone with which calls can be answered These directory numbers should be removed from the phone and deleted if necessary Registering the Phone with Cisco Unified Communications Manager A phone can register with a Cisco Unifie...

Page 47: ... connection to which the ATA 187 is connected is up For example check whether the particular port or switch to which the phone is connected is down and that the switch is not rebooting Also make sure that there are no cable breaks Identifying Intermittent Network Outages Intermittent network outages affect data and voice traffic differently Your network might have been experiencing intermittent ou...

Page 48: ...ty Errors If the phone continues to reset follow these steps to eliminate DNS or other connectivity errors Procedure Step 1 Use the IVR to reset phone settings to their default values See Accessing the IVR and Configuring Your Phone Setting page 8 1 for details Step 2 Modify DHCP and IP settings a Disable DHCP b Assign static IP values to the phone See Understanding Phone Configuration Files page ...

Page 49: ... or has an incorrect certificate Phone cannot authenticate CTL file The security token that signed the updated CTL file does not exist in the CTL file on the phone Phone cannot authenticate any of the configuration files other than ITL file The configuration file may not be signed by the corresponding certificate in the phone s Trust List Phone does not register with Cisco Unified Communications M...

Page 50: ...p providing power to the cable Changing the phone configuration By default the network configuration options are locked to prevent users from making changes that could impact their network connectivity You must unlock the network configuration options before you can configure them Dual Tone Multi Frequency DTMF delay When you are on a call that requires keypad input if you press the keys too quick...

Page 51: ...ED_THRESHOLD To resolve this problem re enable the port from the switch One way audio When at least one person in a call does not receive audio IP connectivity between phones is not established Check the configurations in routers and switches to ensure that IP connectivity is properly configures Peer to peer image distribution fails If the peer to peer image distribution fails the phone will defau...

Page 52: ...TA 187 Cisco Products and Services Technical Support and Documentation http www cisco com cisco web support index html Cleaning the ATA 187 To clean your ATA 187 use a soft dry cloth to wipe the surface Do not apply liquids or powders directly on the device As with all non weather proof electronics liquids and powders can damage the components and cause failures ...

Page 53: ...ation about your country s implementation of services contact your local Cisco equipment provider This section contains the following topics Attended Transfer page 7 2 Call Pickup page 7 2 Caller ID page 7 2 Call Waiting Caller ID page 7 2 Call Hold page 7 2 Group Call Pickup page 7 3 Meet Me Conference page 7 3 Privacy page 7 3 Shared Line page 7 3 Speed Dial page 7 4 Redial page 7 4 Unattended T...

Page 54: ... answers the phone you may consult with the callee and then transfer the existing party by hanging up your phone handset Call Pickup Allows you to answer a call that is ringing on another phone within your call pickup group Perform the following steps to use the call pickup feature Procedure Step 1 Pick up the phone handset Step 2 Press 3 Caller ID When the phone rings the ATA 187 sends a Caller I...

Page 55: ...rticipants call a predetermined number at a scheduled time Perform the following steps to complete a meet me conference Procedure Step 1 Pick up the phone handset Step 2 Press 5 room ID Privacy This feature prevents users who share a line from adding themselves to a call and from viewing information on their phone screens about the call of the other user Perform the following steps to enable or di...

Page 56: ...he most recently dialed phone number by pressing the buttons Unattended Transfer This feature allows a user to transfer an existing call to another phone number without waiting for the dialed party to answer before the user hangs up Two methods exist for performing an unattended transfer Semi unattended Transfer page 7 4 Fully Unattended Transfer page 7 5 Semi unattended Transfer Perform the follo...

Page 57: ... s voice mail box Voice Messaging System This feature enables callers to leave messages if calls are unanswered or access voice messages Perform the following steps to access the voice messaging system Procedure Step 1 Pick up the phone handset Step 2 Press 0 Making a Conference Call in the United States Procedure Step 1 Dial the first number Step 2 When the person you called answers press the fla...

Page 58: ...ls you while you are speaking on the phone you can answer by performing a hook flash You cannot conference in all three callers but the first person you called could call someone else and daisy chain them into the conference Call Waiting in Sweden If someone calls you while you are speaking on the phone you can answer by performing a hook flash then pressing 2 on your phone keypad or you can confe...

Page 59: ...warding in the United States Forward Unconditional Press 72 on your phone keypad enter the number you want to forward call to then press again Cancelling Call Forwarding To cancel call forwarding press 73 on your phone keypad Call Forwarding in Sweden Forward Unconditional Press 21 on your phone keypad enter the number you want to forward calls to then press To cancel press 21 ...

Page 60: ...7 8 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 OL 21862 01 Chapter 7 Using SIP Supplementary Services Common Supplementary Services ...

Page 61: ...s Note You can change the PIN on the Cisco Unified CM User Options web page Procedure Step 1 To access the IVR go off hook on the phone connected to Line 1 and press the Set Up button on the front panel of the ATA 187 The IVR prompts for a password Note The ATA 187 allows you to enter only numerical values for password Step 2 Enter the PIN by pressing the number keypad followed by button You are a...

Page 62: ...et mask press Note To enter the dot that separates each octet in the IP address press 3 IVR announces the default gateway To change the default gateway use the keypad to enter a new IP address followed by the To retain the current default gateway press Review or Set TFTP Server 2 IVR announces the current TFTP setting To change the TFTP server use the keypad to enter a new IP address followed by t...

Page 63: ...fications page A 1 Electrical Specifications page A 2 Environmental Specifications page A 2 Physical Interfaces page A 2 Ringing Characteristics page A 3 Software Specifications page A 3 SIP Compliance Reference Information page A 4 Physical Specifications Table A 1 Physical Specifications Description Specification Dimensions 1 5 x 5 4 x 6 7 in 3 8 x 13 7 x 17 0 cm H x W x D Weight 9 2 oz 260 g ...

Page 64: ...5 x 1 93 x 1 31 in 10 3 x 4 9 x 3 35 cm 4 23 oz 120 g for the AC input external power adaptor 4 9 ft 1 5 m DC cord 6 ft 1 8 m cord UL cUL CE approved Class I adaptor Table A 3 Environmental Specifications Description Specification Operating temperature 23 to 113 F 5 to 45 C Non operating temperature 13 to 158 F 25 to 70 C Relative humidity 5 to 95 noncondensing Table A 4 Physical Interfaces Descri...

Page 65: ...teristics On hook voltage tip ring 48V Off hook current 24 mA nominal RJ 11 FXS port terminating impedance option The ATA 187 I1 provides multiple impedance such as 600 ohm for American SKU 900 ohm for European SKU 220 ohm 820 ohm 120nF for Australian SKU and so on Table A 6 Software Specifications All Protocols Description Specification Call progress tones Configurable for two sets of frequencies...

Page 66: ...VT tones for SIP Note Cannot transmit RFC 2833 and in band signalling simultaneously Configuration DHCP RFC 2131 Web configuration via built in Web server Touch tone phone keypad configuration with voice prompt Basic boot configuration RFC 1350 TFTP Profiling Dial plan configuration Cisco Discovery Protocol Quality of Service Class of service CoS bit tagging 802 1P Type of service ToS bit tagging ...

Page 67: ...0 3 Australia Germany Italy New Zealand United States Table B 1 Australia Parameter Recommended Values DialTone 2 31163 30958 1477 1566 1 0 0 0 BusyTone 1 30958 0 2212 0 0 3000 3000 0 ReorderTone 1 31163 0 2086 0 0 3000 3000 0 RingbackTone 102 31163 1477 30742 1654 2 3200 1600 3200 16000 0 SITTone 1 30958 0 2212 0 0 20000 4000 0 Table B 2 Germany Parameter Recommended Values DialTone 1 30958 0 312...

Page 68: ...0 1757 0 0 4000 4000 0 Table B 4 New Zealand Parameter Recommended Values DialTone 1 31163 0 3307 0 1 0 0 0 BusyTone 1 31163 0 1657 0 0 4000 4000 0 ReorderTone 1 24916 0 3483 0 0 4000 4000 0 RingbackTone 102 31163 1316 30742 1474 2 3200 1600 3200 16000 0 SITTone 100 1 31163 1657 0 0 0 0 2 6000 800 6000 3200 0 0 2 0 Table B 5 United States Parameter Recommended Values DialTone 2 31537 30830 1490 18...

Page 69: ...A three second 2100 Hz tone generated by a fax machine answering a call which is used in the hand shaking used to set the call the response from a called fax machine to a CNG tone CELP code excited linear prediction compression Compression algorithm used in low bit rate voice encoding Used in ITU T Recommendations G 728 G 729 G 723 1 CLIP Calling Line Identification Presentation Shows your identit...

Page 70: ...ain Name System System used on the Internet for translating names of network nodes into addresses DSP digital signal processor A DSP segments the voice signal into frames and stores them in voice packets DTMF dual tone multifrequency Tones generated when a button is pressed on a phone primarily used in the U S and Canada E E 164 The international public telecommunications numbering plan A standard...

Page 71: ...a very low bit rate as part of the H 324 family of standards This Codec has two bit rates associated with it 5 3 and 6 3 kbps The higher bit rate is based on ML MLQ technology and provides a somewhat higher quality of sound The lower bit rate is based on CELP and provides system designers with additional flexibility Described in the ITU T standard in its G series recommendations G 729A Describes C...

Page 72: ...ignals in PCM systems Similar to the European a law See also a law and companding N NAT Network Address Translation Mechanism for reducing the need for globally unique IP addresses NAT allows an organization with addresses that are not globally unique to connect to the Internet by translating those addresses into globally routable address spaces Also known as Network Address Translator NSE packets...

Page 73: ...uests A registrar is typically co located with a proxy or redirect server and may offer location services router Network layer device that uses one or more metrics to determine the optimal path along which network traffic should be forwarded Routers forward packets from one network to another based on network layer information Occasionally called a gateway although this definition of gateway is be...

Page 74: ...A TN power system is a power distribution system with one point connected directly to earth ground The exposed conductive parts of the installation are connected to that point by protective earth conductors TOS Type of service See CoS U UAC User agent client A client application that initiates the SIP request UAS User agent server or user agent A server application that contacts the user when a SI...

Page 75: ...Internet with POTS like functionality reliability and voice quality VoIP enables a router to carry voice traffic for example phone calls and faxes over an IP network In VoIP the DSP segments the voice signal into frames which then are coupled in groups of two and stored in voice packets VoIP is a blanket term which generally refers to Cisco s standard based for example H 323 approach to IP voice t...

Page 76: ...Glossary GL 8 Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP Version 1 0 OL 21862 01 ...

Page 77: ...6 1 Audible message waiting indicator 4 1 auto registration using 2 6 B BAT Bulk Administration Tool 2 7 C caller ID 4 2 7 2 call forward all calls 4 2 call forwarding in Sweden 7 7 in United States 7 7 types 7 6 call pickup 4 2 call waiting 4 2 in Sweden 7 6 in United States 7 6 call waiting caller ID 7 2 cbarge 4 1 Cisco Unified Communications Manager adding phone to database of 2 5 interactions...

Page 78: ...fications A 2 environmental specifications A 2 F fax pass through mode 5 1 fax services 5 1 forced authorization codes 4 3 FXS ports 1 5 G group call pickup 4 3 H hold 4 3 I installing preparing 2 5 L Lightweight Directory Access Protocol LDAP 1 3 M meet me conference 4 3 message waiting 4 3 methods supported 1 8 music on hold 4 3 N network connectivity checking 6 2 network outages identifying 6 5...

Page 79: ...aining power 2 4 requesting configuration file 2 5 requesting CTL file 2 4 understanding 2 4 supplementary services common 7 1 T T 38 fax relay mode 5 1 telephony features Audible message waiting indicator 4 1 caller ID 4 2 call forward 4 2 call pickup 4 2 call waiting 4 2 cbarge 4 1 conference 4 2 direct transfer 4 3 forced authorization codes 4 3 group call pickup 4 3 hold 4 3 meet me conference...

Page 80: ...iguration 6 6 U User agent client UAC 1 3 User agent server UAS 1 3 users adding to Cisco Unified Communications Manager 4 6 using phone templates to add phones 2 7 V VLAN verifying 6 6 voice messaging system 4 4 W warnings installation 3 2 lightning activity 3 2 main disconnecting device 3 2 product disposal 3 2 ...

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