I need to know if my understanding is correct, can the command incoming called-number command be used in the fxo interface in the gateway or it is limited to an T1 E1 interface.
incoming called number used to match the called number in the inbound dialpeer
with FXO you have one number associated with it which mean always one number to be called ( no need )
however with E1/T1 there is a range of numbers in this case you may need to make some changes or translations only to some called numbers( part of the range) in this case this command will be useful
hops this helps
if helpful Rate