I have this problem:
I have to configure 4 SCCP phones with the following number 1001,1002,1003,1004 and they have to call only corrisponding phone behind the sip gateway typing in the number 3300.
The phone 1001 have to call only the phone 3301 only typing in the numer 3300 also
The phone 1002 have to call only the phone 3302 only typing in the number 3300
Is it possible to configure something like that on the call-manager and How have to I configure tha call-manager