When using the SIP protocol, it is necessary to use the local digit map for matching. If the default matching mode is used to match the 7-digit number starting with 7727, then which options can be?

When using the SIP protocol, it is necessary to use the local digit map for matching. If the default matching mode is used to match the 7-digit number starting with 7727, then which options can be?
A . Local-digit map add huawei normal 7727xxx/7726.
B. Local-digit map add huawei normal 772./7727xxx
C. Local-digit map add huawei normal 7727
D. Local-digit map add huawei normal 7727xxx/7727

View Answer

Answer: D