Cisco Bug: CSCum97996 - CUCM sends "Send 181 Call Is Being Forwarded" even it is False
Feb 16, 2017
- Cisco Unified Communications Manager (CallManager)
Known Affected Releases
Symptom: CUCM sends SIP 181 on inbound call leg when call is being forwarded. This may result in unexpected tones to be played at the caller. Conditions: CUCM Version : 184.108.40.20600-12 with following configuration - SIP trunk with QSIG tunnelling enabled. - CUCM service parameters "Send 181 call is being forwarded" is set to False "Delay Sending 181 until 180/183 message is received" is set to True Call flow : Inbound call on SIP trunk which is being forwarded. With above configuration CUCM should never send out 181.
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