Incoming route not in service

I’m trying to setup an incoming route but I keep getting a not in service recording everytime I call the number. This is what I see in the console:

-- Executing [[email protected]:1] NoOp("SIP/", "Received incoming SIP connection from unknown peer to 1604248xxxx") in new stack -- Executing [[email protected]:2] Set("SIP/", "DID=1604248xxxx") in new stack -- Executing [[email protected]:3] Goto("SIP/", "s,1") in new stack -- Goto (from-sip-external,s,1) -- Executing [[email protected]:1] GotoIf("SIP/", "0?checklang:noanonymous") in new stack -- Goto (from-sip-external,s,5) -- Executing [[email protected]:5] Set("SIP/", "TIMEOUT(absolute)=15") in new stack Channel will hangup at 2012-07-30 22:40:20.739 PDT. -- Executing [[email protected]:6] Answer("SIP/", "") in new stack -- Executing [[email protected]:7] Wait("SIP/", "2") in new stack -- Executing [[email protected]:8] Playback("SIP/", "ss-noservice") in new stack -- <SIP/> Playing 'ss-noservice.gsm' (language 'en') == Spawn extension (from-sip-external, s, 8) exited non-zero on 'SIP/' -- Executing [[email protected]:1] Hangup("SIP/", "") in new stack == Spawn extension (from-sip-external, h, 1) exited non-zero on 'SIP/'

Freepbx 2.10
CentOS 5.6

Leaving the CallerID Number blank seems to have solved this issue.