[Asterisk-Users] Setting a "Forward" to an external number on your phone

[Star User]

If you want to set up call forwarding in a device independent way, see
http://lists.digium.com/pipermail/asterisk-users/2003-July/016872.html

Unfortunately, if you get Asterisk to do the forwarding, there is no way to
tell just by looking at the phone that your calls are forwarded. If you use
an IP phone like Cisco, Polycom or Snom, you can use the phone's built-in
Call Forwarding button, and you can tell by looking at the phone whether the
calls are forwarded or not.

Rana Dutt