I have three Cisco 7940 phones connecting to a Server I setup running Asterisk now. I am able to see the phones connect through SIP, I am able to call each phone via there extension. But I am not able to dial out.
I receive this error
NOTICE: chan_sip.c:13885 handle_request_invite: Call from '' to extension '93997574' rejected because extension not found.
I am unsure what could be wrong. Any help would be greatly appreciated