1 |
What determines whether a gateway does digit-by-digit matching? |
Answer: |
A gateway uses digit-by-digit matching if the incoming dial peer is not configured for direct-inward-dial. If the incoming dial peer is configured for direct-inward-dial, the entire digit string is matched. The exception is if the incoming call is ISDN with overlapping receiving. |
2 |
What is the default order of operation for matching outbound dial peers? |
Answer: |
Most specific match is the first selection. If two equivalent matches exist, the peer with the highest configured preference is selected. If preferences are equal, the selection is random. |
3 |
What is necessary for a dial peer to be considered operational? |
Answer: |
You must configure the dial peer with an answer address or an incoming called number or both a destination pattern and a target. |
4 |
Which factors must you balance when designing a dial plan? |
Answer: |
You must balance ease of use for end users with administrative overhead and scalability. |
5 |
What end-user issue can be caused by an overlapping dial plan? |
Answer: |
An overlapping dial plan requires the interdigit timer to expire before the appropriate route pattern can be selected. This results in a long post dial delay. You can minimize this issue by reducing the interdigit timer or by training users to use the # to indicate they have entered all digits. |
6 |
What is the default dial peer? |
Answer: |
The default dial peer is a system dial peer that is used to match inbound calls if the call does not match a configured dial peer. |
7 |
Which number is used to match the destination pattern on a dial peer? |
Answer: |
For inbound dial peers, the calling number (ANI) is used to match the destination pattern. For outbound dial peers, the called number (DNIS) is used to match the destination pattern. |
8 |
How are dial peers configured to accommodate an overlapping dial plan? |
Answer: |
For the dial peers that have overlapping destination patterns, you need to add a T to the end of the digit string. This signifies that the digit matching should not occur until the interdigit timer expires. |