AT&T IP Flexible Reach ServiceNortel BCM50 Release 3.0 SIP Configuration Guide© 2007 AT&T Intellectual Property. All rights reserved. AT&T, the AT&Tlogo and all other AT&T marks contained herein are trademarks of AT&TIntellectual Property and/or AT&T affiliated companies. All othermarks contained herein are the property of their respective owners.TABLE OF CONTENTS1 Introduction................................................................................................................. 41.1 Pre-IP PBX Configuration Activity .................................................................... 41.2 Customer Questions ............................................................................................ 41.3 Trouble Reporting............................................................................................... 51.4 Document Feedback............................................................................................ 51.5 Document Change History.................................................................................. 52 Special Notes .............................................................................................................. 73 Overview..................................................................................................................... 84 Configuration Guide ................................................................................................. 114.1 Nortel BCM50 Version and Feature Requirements.......................................... 114.2 IP Trunks........................................................................................................... 134.3 SIP Proxy Parameters ....................................................................................... 214.3.1 Failover to Secondary AT&T IP Border Element (IPBE) ........................ 214.4 Media Parameters.............................................................................................. 234.5 Port Ranges ....................................................................................................... 254.6 Configuring Outgoing Calls from BCM50 to AT&T IP Flex Reach ............... 264.7 Configuring Incoming Calls from AT&T IP Flex Reach to BCM50 ............... 275 Troubleshooting ........................................................................................................ 305.1 System Monitoring with BCM Monitor ........................................................... 305.2 Real-time display of BCM50 Alarms ............................................................... 345.3 Log Management .............................................................................................. 356 APPENDIX A: Configuring Destination Code with Wildcard ................................ 36Issue 0.7 Page 2 of 37