I am having this issue for a week already. I have tried to search on many resources but still cannot find out.
The problem is customer want to forward incoming call to his Mobile number. I configured as follow and it was fail to forward incoming call from outside.
but I can forward to mobile if the incoming call is from internal extension. Any idea?
#ephone-dn 4 dual-line
call-forward busy xxxxxxxx
call-forward noan xxxxxxxx timeout 10
Would appreciate your help!