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Cisco Bug: CSCuq71547 - Phone failover to 2nd CUCM then un-register

Last Modified

May 05, 2016

Products (1)

  • Cisco Unified IP Phones 9900 Series

Known Affected Releases

9.4(2.8)

Description (partial)

Symptom:
8961/9951/9971 phone failovers to 2nd CUCM then un-registers.

Conditions:
1. A 8961/9951/9971 phone registers to a CUCM cluster.
2. Break the connection between the phone and the primary CUCM by any means, i.e. add a route to the primary CUCM so that the primary CUCM can't reach the phone.  Wait till the phone failovers to the secondary CUCM.
    The phone failovers to the secondary CUCM. Then it un-registers. 2 minutes later, it registers again.
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