Case Study

Review Questions

1	Define digit manipulation.
2	Of the digit manipulation techniques digit stripping, digit forwarding, digit prefixing, number expansion, and CLID, which are executed after the outbound dial peer is matched but before the numbers are transmitted?
3	By default, POTS dial peers strip any outbound digits that explicitly match their destination pattern. What are two simple ways to prevent the router from stripping all the digits?
4	When is a number expansion executed, and how can you test its action?
5	Given the following voice translation rule, how would a dialed string of 913012345678 be translated? /^(91)301(.......)/ /12/
6	Given the following voice translation rule, how would a dialed string of 913012345678 be translated? /^(91)301(.......)/ /17002/