[asterisk-users] callerid and user on voicemail

[Oguzhan Kayhan]

Hello,

There is a problem that i can not figure out how to solve.
I got users with 5 digit usernames for sip.

Some users has a callerid for outside calls.

I have such problems

When a user activates (for ex) call forwarding, System creates that entry on 
database as CFIM/callerid  not the username,
So this rule works only if a call is made from outside to the callerid. Not 
the local calls made to username.

Or, if that user dials *97 and tries to enter voicemail,  voicemail 
application looks for callerid instead of username , so it can not find it.

And got similar problems in some other applications too.
So, how can i make to use callerid only for outbound calls, or to forward 
incoming calls to local extensions.