Hi, please your help
Which of the following statements describe the reliability requirements of the voice service for the
IP bearer network?
A. Key modules of equipment must support active/standby switching or other redundancy backup
functions.
B. The IP network uses a full/half-meshed structure and provides redundant links to strengthen the
self-healing capability.
C. Link protection switching time = 50 ms
D. Link protection switching time can larger than 150 ms