Câu 73: 400-051: CCIE Collaboration Written

What does a comma accomplish when it is used in a SIP Dial Rule pattern that is associated with a Cisco 9971 IP Phone that is registered to Cisco UnifiedCommunications Manager?

1. A. It inserts a 500-millisecond pause between digits.
2. B. It causes the phone to generate a secondary dial tone. — đáp án hiện tại
3. C. It is a delimiter and has no significant dialing impact.
4. D. It indicates a timeout value of 5000 milliseconds.
5. E. It is an obsolete parameter and will be ignored.