AT&T BCM50 manual IP Trunks

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AT&T IP Flexible Reach Service

Nortel BCM50 Release 3.0 SIP Configuration Guide

4.2 IP Trunks

Voice over IP (VoIP) trunks, are signaling channels that simulate how CO lines work. However, VoIP trunks transmit data to the IP network over a LAN or IP network rather than over physical lines. Once the VoIP trunks are set up, you can assign them to line pools, and program their behavior in the same way you would PRI lines.

VoIP trunks use line numbers 001 to 012. These line records appear under Configuration Æ Telephony Æ Lines Æ Active VoIP Lines. To access VoIP lines, you need to enter software keycodes. Each keycode supports a specific number of trunks. No entries appear in the Enabled VoIP lines field until you complete the IP Trunks Settings field, which displays when you click IP Trunks under Configuration Æ Resources Æ Telephony Resources Æ IP trunks.

Note: The BCM50 (Release 3.0) offers two VoIP trunk license options: SIP Gateway Trunk License and VoIP Trunk Gateway License. The SIP Gateway Trunk License enables SIP-only trunks and the VoIP Trunk Gateway License enables SIP or H.323 trunks. Either type of trunk licenses can be used for SIP signaling with AT&T IP Flexible Reach service.

Customers that desire a lower cost or have no requirements for H.323 should choose the SIP Gateway Trunk License option.

VoIP trunks should be configured to use a single line pool. Do not mix other trunk types on the same line pool (e.g. analog, PRI, etc). The VoIP line pools are assigned to routes, which, in turn, are configured with destination codes that route calls to the AT&T IP Flex Reach network.

You can also create a fallback for the trunk. This is a situation where the system reroutes the call to a PSTN line pool if the primary route is not available or the call quality is not suitable. If you do not configure your network for fallback and the call quality is below threshold, the IP call fails.

Check under Configuration ÆTelephony Æ Lines Æ Active VoIP Lines to see if trunks have been allocated. You should have a number of IP trunks displayed. The total number of lines indicated corresponds to the number of IP trunks licensed by Nortel for your BCM50. See figure below.

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Contents AT&T Voip Table of Contents Table of Figures Customer Questions IntroductionDocument Feedback Document Change History Trouble ReportingIssue Special Notes Emergency 911/E911 Services LimitationsCalling Number Restricted / Private not supported BCM Soft Phones not currently supportedPST OverviewIssue Pstn Nortel BCM50 Version and Feature Requirements Configuration GuideBCM50 Lists of Applied Patches IP Trunks Available VoIP Trunks Assigning Line Pool to IP Trunks Issue Configuring General DN Length Configuring Private Received Number Length Assigning a Route for IP Trunks Assign Code to Access IP Trunk Routes Failover to Secondary AT&T IP Border Element Ipbe SIP Proxy ParametersOutbound Proxy Table for failover to secondary AT&T IPBEs Payload Size Media ParametersConfiguring analog DNs for fax Media Gateway Port Ranges Port RangesConfigurationÆ TelephonyÆ Sets Æ All DNs Configuring Outgoing Calls from BCM50 to AT&T IP Flex ReachConfiguring did for Incoming Calls Configuring Incoming Calls from AT&T IP Flex Reach to BCM50ConfigurationÆ TelephonyÆ Lines Æ Target Lines Assign Line Pool to IP Sets System Monitoring with BCM Monitor TroubleshootingIP Device Listing RTP Session Information System Resources AdministrationÆ General ÆAlarms Real-time display of BCM50 AlarmsLog Management Log ManagementConfiguring Destination Code with Wildcard Appendix a Configuring Destination Code with WildcardEnd of Document
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