Support Center > Search Results > SecureKnowledge Details
Occasionally, SCCP VoIP phones unregister from Call Manager during cluster failover
Symptoms
  • Occasionally, SCCP (Skinny) VoIP phones unregister from Call Manager during cluster failover.
    The call can survive the cluster failover, but there is no ability to use different phone's features (e.g., hold/unhold, conference, transfer).
    After the call ends, all the phones can re-register to Call Manager within a few seconds.
Solution
Note: To view this solution you need to Sign In .