Cisco Bug: CSCtb59075 - SIPStationInit rejects calls with 503 cause code, hence BB calls fail.
Nov 03, 2012
- Cisco Unified Communications Manager (CallManager)
Known Affected Releases
Symptom: Blackberry SIP device cannot make a call, even though it is successfully registered to CUCM. Conditions: This is a rare occurance and may happen when the MVS (Blackberry proxy) is reset.
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Bug Details Include
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