How to enable call forwarding from SIP extension Softphone or Analog Phone if you are using Asterisk PBX or Issabel PBX .
From the Softphone or Analog Phone
Dial *72 with number where you want to forward the call for example I want to forward my all calls on
my mobile no 83199999 then i will dial *7283199999 make sure you are able to dial outside from your phone . and add prefix which you dial for outside calls.
To Disable Call Forwarding