you can pull the audit logs and cucm trace from the rtmt from the time of the issue and see what is happening

hi Miket,   I think you can use Alerting Name option in the line configuration to display the "service desk" for internal calls . For external calls  you need to reach out to the phone service provider.

I would suggest collect tech support logs from cimc and it get it analysed by tac for any hardware failuers that could have cause this issue.   Also you can have a  look at faults and logs in cimc to check for any hardware failuers.   https://www.cis...

You can create translation pattern for digit 0 Refer to this document for confighttps://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_5_1/ccmcfg/bccm-851-cm/b03txpat.html

reason I'm asking this question is because I have a MRGL in which has 4 MRG which has 1st MRG has MTP and second MRG has Transcoder 3rd has MTP and 4th has Transcoder.   As per SRDN MRGL is group of prioritised list of MRG so ideally it should use th...