Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 192

Some Cisco mobility users cannot resume calls on the desk phone after they hang up on a mobile phone. The users have Cisco IP phones registered to the Cisco UCM. Which set of configuration steps resolve the issue?

Answer options

• A. Add voicecall disc-pi-off on the voice gateway. On Call Manager, set the Retain Media on Disconnect with PI for Active Call service parameter to True.
• B. Add voicecall disc-pi-on on the voice gateway. On Call Manager, set the Retain Media on Disconnect with PI for Active Call service parameter to True.
• C. Add voicecall disc-pi-on on the voice gateway. On Call Manager, set the Retain Media on Disconnect with PI for Active Call service parameter to False.
• D. Add voicecall disc-pi-off on the voice gateway. On Call Manager, set the Retain Media on Disconnect with PI for Active Call service parameter to False.

Correct answer: B

Explanation

The correct answer is B because adding 'voicecall disc-pi-on' allows the system to recognize the call disconnect properly, and setting the 'Retain Media on Disconnect with PI for Active Call' to True ensures that media can be retained for resuming calls. The other options either incorrectly use 'disc-pi-off' or set the retention parameter to False, which would not support resuming calls.