[Asterisk-Users] Call Back

[Alex Lopez]

We have Nextel Cell phones where incoming calls are free!   I would like to call a DID number on my Asterisk server, have it grab my caller ID, not pick up, wait a few seconds, and call me back.     I have already set up qcall to do this and pass it to a context that asks for a password via authenticate, and is limited to dialing in my local area so I am not worried about fraud.   I am at the point where it all works except I do not know the variables in extension.conf  {$CALLERID} is the whole strings including name!!  I want just the number.   I could also use this to set up a ANI announcement where you call the * box and it would use SayDigits to read the number you are calling from.  I searched the archives via google and found nothing.   Anybody got any ideas???