Which three events describe the relationship of an IP phone to its secondary subscriber in a Cisco Unified Communications Manager system? (Choose three.)
A. The IP Phone sends a TCP connect message.
B. The IP Phone sends a TCP keepalive message every 30 seconds.
C. The IP Phone sends a TCP keepalive message every 60 seconds.
D. The IP Phone registers with the primary system when the secondary system is unavailable. E. The IP Phone attempts to register with the secondary system when the primary system is unavailable.
E. The IP Phone registers with all the Cisco Unified Communications Manager subscribers in the group simultaneously, including the secondary subscriber.
The time interval is 30 seconds to primary server and 60 seconds to the backup server.
https://www.cisco.com/c/en/us/support/docs/collaboration-endpoints/unified-ip-phone-7900-series/200410-Troubleshoot-IP-Phone-Unregistration-A.html#anc5
I believe the correct answer is ACE – the IP phone sends SCCP keepalives every 60 seconds to its SECONDARY subscriber. It send SCCP keepalives to its PRIMARY (not what was asked in the question) every 30 seconds
I agree
I agree.
A. The IP Phone sends a TCP connect message.
C. The IP Phone sends a TCP keepalive message every 60 seconds.
E. The IP Phone attempts to register with the secondary system when the primary system is unavailable.