Implementing Cisco IP Telephony and Video Part 1 (CIPTV1, legacy) — Question 10

Which three events describe the relationship of an IP phone to its secondary subscriber in a Cisco Unified Communications Manager system? (Choose three.)

Answer options

• 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.
• F. The IP Phone registers with all the Cisco Unified Communications Manager subscribers in the group simultaneously, including the secondary subscriber.

Correct answer: A, C, E

Explanation

The correct answers (A, C, E) highlight the key interactions between the IP phone and its secondary subscriber. Specifically, A notes the establishment of a connection, C indicates the keepalive interval, and E describes the IP phone's behavior when the primary system is down. Options B, D, and F are incorrect as they either misstate the timing of the keepalive message or do not accurately reflect the registration process with the primary and secondary systems.