Help me, please, with following problem:
There is a CUCM6.1
CUCM <--> GW2821 <<-E1->> PSTN
There are two different extensions for a local calls and calls between cities.
For a local call an IP phone abonent uses 9<tel num>
For a call to another city IP phone abonent uses 8<city code><tel num>
When a user of IP phone receives a call it is dispayed: 8<city code><tel num> (just adds 8 before 10 digits)
how to do on CUCM that the call will display like 9<tel num> if a user receives it from a local city and 8<city code><tel num> in other cases?