Câu 12: 300-070: Implementing Cisco IP Telephony and Video, Part 1 (CIPTV1)

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

1. A. The IP Phone sends a TCP connect message. — đáp án hiện tại
2. B. The IP Phone sends a TCP keepalive message every 30 seconds.
3. C. The IP Phone sends a TCP keepalive message every 60 seconds. — đáp án hiện tại
4. D. The IP Phone registers with the primary system when the secondary system is unavailable.
5. E. The IP Phone attempts to register with the secondary system when the primary system is unavailable. — đáp án hiện tại
6. F. The IP Phone registers with all the Cisco Unified Communications Manager subscribers in the group simultaneously, including the secondary subscriber.