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LANCOM 1722 VoIP – LANCOM 1724 VoIP

Chapter 2: Installation

41

EN



The LANtools and the LANCAPI functions also require a Windows
operating system. A web browser is required for access to WEBconfig.

2.3

Introducing LANCOM Router

This section introduces your device. We will give you an overview of all status
displays, connections and switches.



While the information in this section is useful for the installation of the
device, it is not absolutely essential. You may therefore skip this sec-
tion for the time being and go straight forward to ’Hardware installa-
tion’

2.3.1

Status displays

The front and the rear panels of the unit feature a series The various LANCOM
Router models have different numbers of indicators on the front panel
depending on their functionality.

Front side

The various LANCOM Router models have different numbers of indicators on
the front panel depending on their functionality.

LANCOM 1722 VoIP

LANCOM 1724 VoIP

Top panel

The two LEDs on the top panel provide a convenient overview of the most
important status information, especially when the device is installed vertically.

LANCOM

LANCOM 1722

1722 VoIP

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LANCOM 1724

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Содержание 1722 VOIP

Страница 1: ...LANCOM 1722 VoIP LANCOM 1724 VoIP...

Страница 2: ...this documentation if they were present at the time of printing Trademarks Windows Windows XP and Microsoft are registered trademarks of Microsoft Corp The LANCOM Systems logo LCOS and the name LANCOM...

Страница 3: ...ingle com pact device It thus combines investment protection and cost savings as a reli able voice over IP solution for small and mid sized enterprises home and branch offices SIP proxy for registrati...

Страница 4: ...designed as a supplement to the user manual and goes into detail on top ics that apply to a variety of devices These include for example Systems design of the LCOS operating system Configuration Mana...

Страница 5: ...y further support In addition support from LANCOM Systems is also available to you Telephone numbers and contact information for LANCOM Systems support can be found on a separate insert or at the LANC...

Страница 6: ...27 1 5 4 The Call Manager 28 1 5 5 Making telephone calls with the LANCOM VoIP Router 29 1 5 6 VoIP characteristics of the LANCOM VoIP Routers 34 1 6 What can your LANCOM Router do 36 2 Installation...

Страница 7: ...Configuring Voice over IP 68 5 1 Instructions for LANconfig 68 5 2 Configuration examples 68 5 2 1 VoIP telephony for stand alone use 69 5 2 2 Using VoIP telephony to extend the downstream ISDN PBX 7...

Страница 8: ...Installation of the LANCOM LANCOM VPN 116 8 2 Installation of the MS Windows fax service 117 8 3 Sending a fax 118 8 3 1 Send a fax with any given office application 118 8 3 2 Send a fax with the MS W...

Страница 9: ...formance data and specifications 129 11 2 Contact assignment 130 11 2 1 ADSL interface 130 11 2 2 ISDN 1 interface 130 11 2 3 ISDN 2 interface 131 11 2 4 Ethernet interfaces 10 100Base T 131 11 2 5 Co...

Страница 10: ...g or DSL are the basis for DSL data transfer to the near est telephone exchange From here the data is passed directly on to the Inter net over high speed connections The asymmetric ADSL version of DSL...

Страница 11: ...he splitter with the supplied cable ADSL can operate over modern ISDN telephone service as well as conven tional analog service POTS Plain Old Telephone Service Devices with inte grated ADSL modem are...

Страница 12: ...with a different telephone system is not possible ADSL over ISDN connections also exist that do not operate in conjunction with ISDN but which use a conventional analog telephone connection A promine...

Страница 13: ...y is the use of broadband technologies such as DSL Digital Subscriber Line But also a conventional ISDN line can be used The technologies of the individual participants do not have to be compatible to...

Страница 14: ...y of individual services Therefore a LANCOM DSL is equipped with appropriate protec tive mechanisms which recognize well known hacker attacks and which guarantee the functionality Quality of Service T...

Страница 15: ...across a broad spectrum of applica tions starting with small companies and extending to large corporations with extensive networks of subsidiaries In the following section we will demon strate a numb...

Страница 16: ...SIP provider The costs depend on the provider s particular tariff models Frequently long distance and overseas calls via a SIP provider are significantly cheaper than the tradi tional telephone conne...

Страница 17: ...rally these numbers are selected from a pool of numbers available to the provider However for companies with a large number of telephone subscrib ers and numbers it is of decisive importance that exis...

Страница 18: ...rates local break out For improved availability to customers located abroad the New York headquarters can for example use a LANCOM VoIP Router with SIP gate way located at their sales office in Italy...

Страница 19: ...is not necessary Calls within the company network are at no charge Outgoing calls are automatically directed to the optimal line for cost opti mization Incoming calls can be switched directly to the a...

Страница 20: ...Adapter External SIP providers and all of the external subscribers attainable via them Upstream SIP PBXs with all of the internal and external subscribers attain able through it The external ISDN wor...

Страница 21: ...ider line acts like a normal SIP account with a single tele phone number The internal users can all make use this account for making SIP calls although only one call can be conducted at a time Dependi...

Страница 22: ...on about which terminal device is available at which internal telephone number The bandwidth reservation QoS settings and firewall settings that are necessary for reliable transmission of voice data a...

Страница 23: ...tching in the LANCOM are handled by the SIP proxy A tele phone signals the SIP proxy that it needs to establish a connection and the SIP proxy uses certain rules to decide which line is to be used for...

Страница 24: ...ation at point to point lines To prevent unknown subscribers from registering authentication at the SIP proxy can be set as a prerequisite to local registration local authenti cation In this case an e...

Страница 25: ...if applicable upon the options available with a PBX The main questions to be answered by the user are as follows Can ISDN terminal devices telephone internally with SIP users Are ISDN terminal device...

Страница 26: ...nly receive calls from an upstream SIP PBX if entered into the LANCOM as an ISDN user and registered as such with the SIP PBX If ISDN terminal equipment can be reached over an ISDN NT interface on the...

Страница 27: ...or the displayed number are all the same 1 5 3 Number translation at network transitions LANCOM VoIP Router switch calls between different telephone networks e g the ISDN network various SIP provider...

Страница 28: ...Typical dialing separators such as and blank are removed A leading is left in place In this case the number is still treated as a numeric number If the check reveals any other alphanumer ical characte...

Страница 29: ...d destination domains entered into the default routes are ignored Only the source filters are processed assuming that the default routes has these filters Specific examples of call routing procedures...

Страница 30: ...As such you can also set up the automatic outside line access for the terminal equipment connected to the LANCOM VoIP Router directly for the ISDN or SIP subscriber groups thereby adapting it to exist...

Страница 31: ...ot available for example due to a power outage the ISDN connection for the down stream ISDN PBX is automatically bridged to the external ISDN con nection when life line support is enabled For a LANCOM...

Страница 32: ...rnal subscribers can be reached by simply dialing the internal number without a 0 preceding it Depending on the settings for automatic outside line access Auto matic outside line access page 29 a spec...

Страница 33: ...ency numbers for the police or fire department are always secured even if the subscribers do not dial the correct preceding dialing signal for outside line access With the standard settings the emerge...

Страница 34: ...IP and ISDN is automatic and invisible to the user Telephone even during a power cut With life line support LANCOM 1722 VoIP only and power relay to the inter nal ISDN port it remains possible to tele...

Страница 35: ...in two ways The devices are addressed with a multiple subscriber number MSN that is linked to the ISDN connection and cannot be influenced Terminal devices are addressed via a Direct Dialing In numbe...

Страница 36: ...o peer networks via ISDN DHCP and DNS server for LAN and WAN N N mapping for coupling networks using the same IP address ranges Port Mapping to set up LAN ports as additional WAN ports Policy based ro...

Страница 37: ...ic registration and authentication of local ISDN subscribers as SIP users Registration of ISDN subscribers as SIP users at upstream SIP PBXs Switching between local and remote ISDN and SIP users Remot...

Страница 38: ...itchable to NT mode With LCOS version 6 0 only one ISDN interface in TE mode can be used for SIP 1 2 Life Line Support to ensure functional telephony during power outages or with a non config ured VoI...

Страница 39: ...rams SNMP interface and TFTP server function Remote configuration via ISDN with ISDN PPP connections e g via Windows network and dial up connections Serial configuration interface Callback function wi...

Страница 40: ...contact your retailer or the address stated on the delivery slip of the unit 2 2 System preconditions Computers that connect to a LANCOM Router must meet the following mini mum requirements Operating...

Страница 41: ...rear panels of the unit feature a series The various LANCOM Router models have different numbers of indicators on the front panel depending on their functionality Front side The various LANCOM Router...

Страница 42: ...LED indicates that the device is operational After the device has been switched on it will flash green for the duration of the self test After the self test either an error is output by a flashing red...

Страница 43: ...e protection select Reset Charge and Time Limits in the context menu right mouse click You can configure the connect charge settings in LANconfig under Management Costs you will only be able to access...

Страница 44: ...ining phase red orange blinking Hardware error TE Mode external ISDN connection NT Mode internal ISDN connection off Interface switched off or Layer 1 deactivated or no Layer 2 TEI Interface switched...

Страница 45: ...tions USB connection Serial configuration port off No network device connected green constantly on Connection to network device operational no data traffic green flickering Data traffic red flickering...

Страница 46: ...t with factory default settings 2 4 Hardware installation Installation of the LANCOM Router involves the following steps LAN first of all connect your LANCOM Router to the LAN or to an indi vidual PC...

Страница 47: ...er plug in one end of the supplied ISDN cable light blue connectors to an ISDN inter face in NT mode When shipped the ISDN interfaces marked with are set up in NT internal mode Connect the other end o...

Страница 48: ...of the type LANCOM 1722 VoIP and LANCOM 1724 VoIP feature sev eral ISDN interfaces with which they can be connected to ISDN exchange lines or with which ISDN terminal equipment can be connected to the...

Страница 49: ...erface in NT mode Bus termination is generally deactivated for ISDN interfaces in TE mode If the LANCOM VoIP Router is the last device at a longer ISDN bus and this itself is not terminated it may be...

Страница 50: ...e connected to an ISDN NTBA for example A power relay in this situ ation would result in a short circuit which would damage the device and the ISDN NTBAs Before altering the DIP switch settings remove...

Страница 51: ...ection an ISDN bus which uses this pro tocol in Germany only DSS1 NT Euro ISDN to provide point to multipoint ISDN interfaces DSS1 NT reverse to provide point to multipoint interfaces while main taini...

Страница 52: ...res that the timing continues to be supplied even if one of multiple TE lines should be shut off If none of the TE connectors supply a timing then the timing system runs freely and uses the internal t...

Страница 53: ...ware The following selection menus will appear on the screen 2 6 2 Which software should you install LANconfig is the configuration program for all LANCOM routers and Wireless LAN access points WEBcon...

Страница 54: ...er The LANCOM VPN Client enables a setting of VPN connections from a remote workstation via Internet to a router with LANCOM VPN Option With LANCOM Online Documentation you can copy the documenta tion...

Страница 55: ...e 63 3 1 Which information is necessary The basic configuration wizard will take care of the basic TCP IP configuration of the router protect the device with a configuration password and will set up t...

Страница 56: ...uration is optional You may also select man ual configuration instead Make your selection after the following considera tions Choose automatic configuration if you are not familiar with networks and I...

Страница 57: ...For the WAN connection it may be necessary to enter the transfer protocol being used The wizard will e g automatically enter the correct settings for major DSL providers You only need to enter the pro...

Страница 58: ...d by entering the value 0 It is possible to completely turn off connect charge protection 3 2 Instructions for LANconfig Start up LANconfig by clicking Start Programs LANCOM LANconfig LANconfig automa...

Страница 59: ...ould always make sure that the configuration access is protected with a password In the next window select your DSL provider from the list that is displayed If you select My provider is not listed her...

Страница 60: ...g in the LAN Network without DHCP server In a network without DHCP server unconfigured LANCOM devices activate their own DHCP server service after starting and assign appropriate IP addresses and gate...

Страница 61: ...ound on a label at the bottom of the device If there is no DNS server in the LAN or it is not linked to the DHCP server then the device can not be reached by the name The following options remain in t...

Страница 62: ...ike to configure the TCP IP settings manually assign an available address from a suitable address range to the LANCOM Router Also set whether or not it is to operate as a DHCP server Confirm your entr...

Страница 63: ...tion PCs The correct addressing of all devices within a LAN is extremely important for TCP IP networks In addition all computers must know the IP addresses of two central points in the LAN Default gat...

Страница 64: ...Cs must be configured so that they automatically obtain their own IP address and the IP addresses of the standard gateway and DNS server via DHCP The IP address of the LANCOM Router must be stored on...

Страница 65: ...net service provider on this list you normally will not have to enter any further transfer parameters to configure your Internet access Only the authentication data that are supplied by your provider...

Страница 66: ...time based billing you can set the LANCOM Router to automatically close existing connections if no data has been trans ferred within a specified time the so called idle time In addition you can activ...

Страница 67: ...ernet connection The wizard will inform you as soon as the entered information is complete Complete the configuration with Finish 4 2 Instructions for WEBconfig In the main menu select Setup Internet...

Страница 68: ...u want to create Enter the required information for this The wizard will inform you as soon as the entries are complete Close the configuration with Finish 5 2 Configuration examples The possible appl...

Страница 69: ...ed to the ISDN NTBA The Internet connection has been set up A telephone number plan with a unique internal telephone number for all terminal equipment to be connected here for example the number 11 fo...

Страница 70: ...ernal numbers In this example it is not necessary to configure SIP users The SIP users are registered at the LANCOM with the settings created in the terminal equipment softphone and VoIP telephone Det...

Страница 71: ...ain from your SIP provider it is usually entered in the format sipdomain tld without the part that designates a specific server Registrar FQDN IP optional Outbound proxy optional The server descriptio...

Страница 72: ...on If you select a special SIP provider from the list then some of the parameters will be pre configured automatically Configure an ISDN line for VoIP telephony use For every MSN on your ISDN connecti...

Страница 73: ...he first SIP user in the softphone example for LANCOM Advanced VoIP Client This suggested call routing table would place all exter nal calls over the ISDN line The SIP line is set up as a backup for i...

Страница 74: ...er Description Name of the user as it is to be displayed at the remote site With the button Details open the dialog for the advanced settings and enter the following values SIP Proxy Internal VoIP dom...

Страница 75: ...for this device for information on configuring the soft ware Call routing procedure on outgoing calls On outgoing calls the Call Manager first searches the call routing table from top to bottom If th...

Страница 76: ...g calls For incoming calls the telephone network exchange removes the prefix from the number dialed destination number Therefore the LANCOM only receives the number itself which may be treated differe...

Страница 77: ...s 11 to 13 for the ISDN connection have been used for two ISDN telephones and one analog fax The LANCOM will now be switched between the public ISDN con nection and the ISDN PBX The PBX is configured...

Страница 78: ...onnection has been set up A telephone number plan with a unique internal telephone number for all terminal equipment to be connected In general the numbers used are predetermined by the PBX which ofte...

Страница 79: ...ANCOM VoIP Router Creating ISDN users Adapting the call routing table Detailed instructions on configuring the LANCOM Telephone number plans with ISDN PBX systems When crossing from the ISDN network t...

Страница 80: ...the ISDN mapping table with their assignment to the internal num bers in the VoIP range Enter all connected ISDN terminal devices as ISDN users with the follow ing values Telephone number SIP name Thi...

Страница 81: ...line The Call Router removes the preceding zeros from the number again and sends the call out to the ISDN line In order to channel calls to special destinations such as international and national lon...

Страница 82: ...terminal equipment is configured as described in the preceding examples with internal VoIP domains and internal numbers for the local site Configuring ISDN PBX When configuring the PBX external MSNs a...

Страница 83: ...r is replaced by the MSN entered for this user 555 555 1 The PBX receives the call to 555 555 1 on its external ISDN bus and again determines that this is an external MSN and can channel the call to t...

Страница 84: ...5 555 1 and 555 555 2 on the ISDN bus at the NTBA were used for two ISDN telephones until now The LANCOM will now be switched between the public ISDN connection and the internal ISDN bus connected to...

Страница 85: ...ing the LANCOM When configuring the LANCOM the following steps must be carried out Setting up the line to the SIP provider Enabling the ISDN interface and assigning MSNs to the internal numbers in the...

Страница 86: ...able are car ried out just as in the example Using VoIP telephony to extend the down stream ISDN PBX Configuring the VoIP terminal equipment The VoIP terminal equipment is configured as described in t...

Страница 87: ...office network and a LANCOM VPN router for example could act as the VPN end point at the headquarters The telephony subscribers at the headquarters receive internal extensions from the number range 10...

Страница 88: ...ion required for con figuration and where it can be entered Basically all that is needed is a SIP PBX line for each location that is correspondingly setup at the remote location Detailed instructions...

Страница 89: ...X line name Unique name for the line leading to the SIP PBX e g HQ for Headquarters PBX SIP domain realm Internal VoIP domain or SIP PBX e g mycom pany HQ Registrar FQDN or IP optional SIP PBX address...

Страница 90: ...by the setup wizard automatically allows international and national long distance calls to be made via the SIP PBX at the headquarters In addition a standard route is used in order to conduct calls f...

Страница 91: ...tes listed in the call Automatic SIP user registration with the LANCOM and the SIP PBX By using the SIP PBX domain with VoIP terminal equipment the user is registered in two ways Since registration ta...

Страница 92: ...SIP PBX line External call from the branch office into the local telephone network The number dialed 0 555 555 matches the route 0 in the call routing table The call router removes the 0 outside line...

Страница 93: ...eans of a VPN tunnel Any terminal equipment that is connected can be reached with the IP addresses used A telephone number plan with a unique internal telephone number for all terminal equipment to be...

Страница 94: ...e setup wizard for configuring the VoIP Call Manager Enable the options SIP phone system ISDN phone system and ISDN users LANCOM Loca tion A SIP terminal equipment location A LANCOM Location B SIP ter...

Страница 95: ...B internal Configure the line leading to the SIP PBX with the following values SIP PBX line name Unique name for the line leading to the remote site PBX SIP domain realm Internal VoIP domain for the r...

Страница 96: ...to be made via remote site s line local calls are routed via ISDN In addition a standard route directs all numbers which cannot be resolved to the remote location s line Adapt the suggested call routi...

Страница 97: ...re con nected in this way an additional entry can detect only the internal calls to a particular site For this make a new entry for the number range 20 to 29 at location B in the call routing table wi...

Страница 98: ...in the preceding examples with internal VoIP domains and internal numbers for the local site Call routing procedure on outgoing calls For this application most calls take place as described in the pre...

Страница 99: ...diagnosis with LANmonitor LANmonitor displays a wealth of information about calls switched in the LANCOM Information about the registered users Information about the lines available Information about...

Страница 100: ...e configuration information provided matches The following instructions will assume that LANCOM Router routers are being used on both sides A network interconnection may also be realized with routers...

Страница 101: ...he entries 6 1 1 General information The following details are required for the installation of LAN to LAN couplings The first column indicates whether the information is required for network coupling...

Страница 102: ...s identification Enter the subscriber number of the remote station in the ISDN subscriber number field The complete subscriber number including all necessary area and country codes is required The sta...

Страница 103: ...1 2 Settings for the TCP IP router In TCP IP networks addressing has a special significance Please note that two interconnected networks are logically separate from one another Each must therefore ha...

Страница 104: ...hey will be hidden behind the VPN gateway s IP address instead Therefore the stations within the remote LAN cannot access IP stations in the other LAN directly For example if a headquarters LAN in Ext...

Страница 105: ...e frame type binding Specifying the IPX network number and binding used is not necessary if the remote network also contains a Novell server It is only necessary to enter the network number for the WA...

Страница 106: ...ld automatically set up a connection to the remote station and contact the required computer 6 3 Instructions for WEBconfig Under WEBconfig the coupling of networks via VPN cannot be con figured using...

Страница 107: ...ter Ping quick testing for TCP IP connections To test a TCP IP connection simply send a ping from your computer to a computer in the remote network For more information on the ping command please see...

Страница 108: ...r an ISDN modem The data transfer protocol is PPP Therefore the support of all usual devices and operating systems is ensured A setup wizard handles the configuration of the dial up connection in the...

Страница 109: ...COM Router uses the optional ISDN caller ID as an additional user authentication This security function should not be used when users dial in from differing locations Please refer to chapter Linking t...

Страница 110: ...he PC when con necting This IP address makes the computer a fully fledged member of the LAN with the appropriate rights it can access all of the other devices in the LAN The same applies in the other...

Страница 111: ...enter the frame type binding Specifying the IPX network number and binding used is not necessary if the remote network also contains a Novell server A network number for the WAN must also be entered...

Страница 112: ...ent in the configuration wizard The wizard asks then for the values that have been defined during the instal lation of the RAS access in the LANCOM Router 7 2 2 Dial up via ISDN A number of settings m...

Страница 113: ...required information The wizard will return a message to indicate that it has all the information it needs Close the wizard with Finish Configure Dial Up Networking access on the dial in PC as describ...

Страница 114: ...IP LANCOM 1724 VoIP Chapter 7 Providing dial up access 114 EN Configure Dial Up Networking access on the dial in PC as described Next test the connection see box Ping quick testing for TCP IP connec t...

Страница 115: ...to office communications functions such as fax machines answer ing machines online banking and eurofile transfer All functions are supplied via the network without the necessity of additional hardware...

Страница 116: ...erence manual This chapter shows the installation of CAPI Faxmodem and MS Windows fax service 8 1 Installation of the LANCOM LANCOM VPN Select the entry Install LANCOM software in the setup program of...

Страница 117: ...ne and Modem Options of the control panel 8 2 Installation of the MS Windows fax service Select the option Printers and Faxes from the control panel Select the option Set up faxing from the window Pri...

Страница 118: ...n send it directly from your respective application If you only want to send a short message select the MS Windows fax service You can use of course any other fax software alternatively 8 3 1 Send a f...

Страница 119: ...COM 1722 VoIP LANCOM 1724 VoIP Chapter 8 Sending faxes with LANCAPI 119 EN The fax client console will open Select the menu item Send a Fax A wiz ard will assist you through the remaining sending proc...

Страница 120: ...access This protection is already activated during the basic configuration by entering a password The device locks access to its configuration for a specified period of time after a certain number of...

Страница 121: ...e net works the MSN for remote configuration via ISDN parameters of configuration lock number of failed log in attempts and duration of the lock 9 2 The firewall wizard The LANCOM Router incorporates...

Страница 122: ...served when the rule will apply to a data packet The wizard will inform you as soon as the entries are complete Complete the configuration with Finish 9 2 2 Configuration under WEBconfig Under WEBconf...

Страница 123: ...n with a password The field for pro tection of the SNMP configuration with a password is also contained in LANconfig in the Management configuration area on the Security tab Have you activated the Fir...

Страница 124: ...the TCP IP configuration section on the General tab Have you closed critical ports with filters The firewall filters of the LANCOM Router devices offer filter functions for individual computers or en...

Страница 125: ...lar ISDN connection After being switched on the device calls itself at the corresponding telephone number to check that it is still connected to the proper ISDN connection The scripting function can s...

Страница 126: ...ing the physical con nection Has the correct transfer protocol been selected The transfer protocol is set along with the basic settings The basic setup wiz ard will enter the correct settings for nume...

Страница 127: ...nchronous connec tions Instructions on how to increase the Windows size can be found in the Knowl edge Base of the support section of the LANCOM web site www lancom de 10 3 Unwanted connections under...

Страница 128: ...is tics Cable test results The results of the cable test for the individual interfaces are show up in a list The following results can occur OK Cable plugged in correctly line ok open with distance 0m...

Страница 129: ...able by DIP switch Outband serial V 24 V 28 port 8 pol mini DIN in combination with LANCOM modem adapter kit suited for connection of external analogue or GSM modems Power supply 12V over external pow...

Страница 130: ...2 1 ADSL interface 6 pin RJ45 socket 11 2 2 ISDN 1 interface 8 pin RJ45 socket corresponding to ISO 8877 EN 60603 7 wired as ISDN TE for direct connection to an ISDN exchange line NTBA Connector Pin...

Страница 131: ...responding to ISO 8877 EN 60603 7 wired as ISDN NT for direct connection to ISDN terminal equipment 11 2 4 Ethernet interfaces 10 100Base T 8 pin RJ45 socket corresponding to ISO 8877 EN 60603 7 Steck...

Страница 132: ...guration interface Outband 8 pin mini DIN socket 11 3 CE declaration of conformity The CE declarations of conformity for LANCOM routers are available for down load on the LANCOM web site www lancom de...

Страница 133: ...on interface 39 Connector cable 40 Configuration password 123 Configuration port 45 Configuration protection 39 57 Connect charge protection 58 59 63 Connect charge budget 57 Connect charge metering 5...

Страница 134: ...IPSec 100 108 IPX 112 Binding 105 111 External Network Number 105 111 Frame type 105 Internal Net Number 111 IPX conventions 105 IPX router 36 Settings 104 ISDN caller ID 102 109 110 Connect charge i...

Страница 135: ...14 R Remote Access Service RAS Configuring the dial in computer 112 Enable software compression 112 IPX 111 NetBIOS 111 Searching for Windows workgroups 111 Security aspects 108 Server 36 setup 108 s...

Страница 136: ...rk VPN 36 Voice communication 15 Voice frequencies 10 Voice over IP 15 VoIP 15 Automatic outside line access 29 Connecting subsidiaries or home offices 16 Downstream PBX 31 Internal numbers 32 Local r...

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