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IntroductionCommon issues with Cisco IOS gateways What debugs need to be collected ?Issue 1. The MGCP gateway does not register to Cisco CallManager Issue 2. Caller Id issue Issue 3. Pstn user gets a fast busy tone or "The number you have dialed is i...
Call flow :(41211,41212)r1[192.168.101.1]------SIP------>r2(201,202) These debugs only tell us which dial-peer are getting matched but to find out more about the busy tone enable the following debugs : debug voip ccapi inoutdebug ccsip messages E...
Hi ,Hope this helps you in troubleshooting your issue .Registering CISCO SIP Phone to CCME :https://supportforums.cisco.com/docs/DOC-14828Thank youPlease rate all useful information