Nortel Networks SRG50 manual Coordination with the main office call server, SRG operating modes

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Chapter 2 SRG50 overview 21

Table 6 SRG50 terminology (Sheet 2 of 2)

Term

Description

 

 

Target Lines

Target lines are internal, virtual paths between trunks and telephones for incoming calls

 

(only). They provide flexibility in the way trunks and telephones can be associated: target

 

lines can be used to direct an incoming call to one or more telephones, direct one or

 

more trunks to one phone, or direct several trunks (in a line pool) to one or more phones.

 

Target lines are assigned to DNs. A target line triggers ringing voltage to the telephone(s)

 

connected to the port(s) associated with the DN(s) that the target line is assigned to. (For

 

example, if a unique target line is assigned to each DN, only one telephone rings when

 

the DN is called. If several DNs are assigned to one target line, calling any of the DNs

 

ring all of the associated phones.)

 

Target lines are required for auto-answer trunks. Because VoIP lines are set internally to

 

auto-answer, target lines are required for SRG operation.

 

Element Manager provides two methods for assigning target lines to DNs.

 

1) Configuration > Telephony > Sets > All DNs > All DNs table > Details for DN subpanel

 

> Line Assignment tab

 

or

 

2) Configuration > Telephony > Lines > Target Lines > Target Lines table > Details for

 

Line subpanel > Assigned DNs tab

 

The first method provides a convenient way to assign the target line to the DN when the

 

DN record is configured. The second method provides fields that allow incoming digit

 

strings to be mapped to the DN.

 

(Lines 125 to 268)

 

For more information about target lines, see the Networking Configuration Guide

 

(NN40020-603).

 

 

Line pool

Several of the same type of trunk configured as one group: a trunk group.

 

 

Coordination with the main office call server

Configuration of the SRG branch office requires datafill at both the SRG and the main office call server. Main office configuration drives SRG configuration, and Nortel recommends that the main office activities be concluded before undertaking SRG configuration.

For information, see CS 1000 considerations on page 33.

SRG operating modes

The SRG has two operating modes:

Normal mode

Local mode

Normal mode

In normal mode (see the figure Normal mode on page 22), the SRG is connected to the main office call server over a WAN using VoIP trunks. From the perspective of the main office, the SRG is a branch office.

SRG50 Configuration Guide

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Contents SRG50 Configuration Guide Copyright 2006-2008 Nortel Networks, All Rights Reserved Task List SRG50 Configuration GuideNN40140-500 Contents Fallback configuration Gatekeeper routing Glossary NN40140-500 About this guide Getting startedAudience AcronymsGetting started Acronyms used in this guide Sheet 2 Command line prompts on display telephones Symbols and conventions used in this guideGetting started Convention Example Used for Word in a special font shownConvention Example Used for Related publicationsGetting Help from the Nortel Web site How to get helpGetting started NN40140-500 SRG50 overview Features SRG 1.5 on BCM SRG50 400BCM50 default IP addresses SRG50 creationPort IP address Subnet mask SRG50 keycode activation BCM50 default user names and passwordsTo activate the SRG keycode Click Load FileTo reboot the system SRG50 and BCM50 features comparisonClick Reboot BCM50 System To verify that the SRG has been successfully createdSRG50 overview Comparison of BCM50 and SRG50 Sheet 2 Supported devicesSRG50 terminology SRG50 terminology Sheet 1Term Description Coordination with the main office call server Normal modeSRG operating modes SRG50 overview SRG50 terminology Sheet 2Normal mode Local mode Local modeAutomatic registration with the main office SRG installation and configuration summarySRG50 overview Process map for installing and configuring an SRG Configuration System IP Subsystem Foundation configurationConfiguration Resources Application Resources Configuration Telephony Global SettingsTask summary IP telephone configurationVoIP trunk configuration Dialing plan configurationConfiguration Telephony Sets All DNs Configuration Telephony Lines Target LinesConfiguration Telephony Lines Active Physical Lines Configuration Telephony Lines Active VoIP LinesCall routing configuration Redirection and call forward configurationConfiguration Telephony Dialing Plan Routing Task summary NN40140-500 CS 1000 and SRG terminology comparison CS 1000 considerationsCS 1000 considerations Comparison of CS 1000 and SRG terms and contexts Sheet 1AC1 Normal and local mode overview Survivability Testing the telephone in local mode Recovery to normal modeVirtual trunk capacity Vacant Number Routing VNRBandwidth management Network Bandwidth Management Nbwm Adaptive Network Bandwidth Management AdbwmAlternative Call Routing ACR To configure SRG for Nbwm and Adbwm Bandwidth management configuration NBWM, ADBWM,Ensure that the DN Type is Public Unknown To configure Alternative Call Routing with did trunksEmergency Services Access ESA configuration To configure on-site notification To configure Emergency Services AccessS1000 Main Office Settings panel S1000 Main Office Settings Sheet 1CS 1000 information for the SRG S1000 Main Office Settings Sheet 2 CS 1000 considerations S1000 Main Office Settings Sheet 3 To datafill the S1000 Main Office Settings panelMO Access Code Length Field Values Description Node IDIP telephones redirection IP telephones numbers and modelsIP telephone numbers and models Sheet 1 SRG S1000 IP Terminal Details fields Sheet 1 S1000 IP Terminal Details panelField Values Description HardwareTo redirect the telephone to the main office call server To enter the Motn and BuidField Values Description Firmware VersionIP telephone settings Configuration settings for redirected IP PhonesParameter Setting Firmware upgrade procedure Firmware upgradeSupported firmware Supported IP clients and firmware versionsCS 1000 considerations NN40140-500 IP telephones setup and configuration Registration passwordTo set the IP telephone registration password Password registration parameters IP telephones setup and configurationLocal mode indication IP telephone codec and jitter settingsTo change local mode indication To configure DN records for redirected IP telephones Telephone DN records configurationIP telephones setup and configuration Model Button Select the Capabilities and Preferences tabTo map received numbers to the DN Received numbers configurationDhcp settings configuration To configure Dhcp settings for SRG operationCall forwarding options Test Local Mode Configuration settings for redirected phonesTo activate Test Local Mode Configuration settings for redirected IP telephonesTo exit Test Local Mode and return to Normal Mode Features in local modeReceiver volume Delayed ring transferAlarm set Emergency Services SupportHeld line reminder Language and ContrastIP telephones setup and configuration NN40140-500 IP networking, SRG to WAN, main office to WAN Setting up the private VoIP networkVoIP trunks Setting up the private VoIP networkBasic parameters Basic parameters Sheet 1Parameter Value Context Private dialing plan Setting up the private VoIP network Basic parameters Sheet 2Meridian Customer Defined Network Mcdn To enable Mcdn TATQoS settings codec, jitter buffer, and related items Main office QoS settings Sheet 1Media parameter Settings SIP settings Modules panel, IP Trunks SRG50 Configuration Guide To enter the QoS settings for VoIP trunksFallback configuration VoIP trunking configurationTo enable fallback Network securityGatekeeper routing To configure gatekeeper settings for H323 trunksTo configure routing for outgoing calls Outgoing calls configurationLine pools Call routingSelect the Destination Codes tab SRG Pstn access Remote Access Package for VoIP trunksTo configure remote access packages To configure destination codes for the Pstn Pstn destination codes configurationExternal attendant support Main office informationPstn access and analog devices Pstn access considerationsAnalog devices considerations To configure the DNs for analog devices Access to system featuresPstn access and analog devices Select the Capabilities and Preferences tab Pstn access and analog devices NN40140-500 IP telephone troubleshooting TroubleshootingIP telephone troubleshooting Sheet 1 Issue / Problem Probable Cause / SolutionIP terminal details Troubleshooting IP telephone troubleshooting Sheet 2IP Terminal Details Sheet 1 Call Server Details Event Id Severity Type CommentsTroubleshooting Probable causes for redirection failureIP Terminal Details Sheet 2 IP telephones manual redirection Troubleshooting fallback to local modeTo manually redirect an IP telephone to the main office IP telephone firmware discrepanciesCannot clear alarms using an alarm set Troubleshooting NN40140-500 Telephone features in normal and local mode Normal modeLocal mode Telephone features in normal and local mode IP Phone 1110 in Local modeIP Phone 1120E in Local mode IP Phone 1140E in Local modeIntercom/Line IP Phone 2002 in Local mode IP Phone 2001 in Local modeIP Phone 2007 in Local mode IP Phone 2004 in Local modeIP Phone 2033 in Local mode IP 2050 Softphone in Local Mode ATA extension featuresFeature Activate Cancel Link key sequences Sheet 1Link *3 Glossary Gatekeeper Gateway H.323 IP telephones Local modeBranch office Call routing Dialing planGlossary Normal mode QoSMain office, main office call server Steering codesIndex 100 101 102