Have an asterisk server set up that is handling phone calls from a number of sources. On a new Cisco IAD2400 setup, inbound calling to a phone on the IAD2400 works fine, but when you try to place an outbound call from the phone the asterisk returns that the number is not in service. It does this for any number you call from the phone.
Here is an attempt to call my cell phone from the IAD2400 (216.24.28.250). My cell phone number works fine, and calls from other SIP trunking clients out to the PSTN work fine through this server, but for some reason calls from the IAD all get that the number is not in service.
216-24-23-90*CLI>
== Using UDPTL TOS bits 184
== Using UDPTL CoS mark 5
== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
-- Executing [5023871095@from-sip-external:1] NoOp("SIP/216.24.23.90-000002ee", "Received incoming SIP connection from unknown peer to 5023871095") in new stack
-- Executing [5023871095@from-sip-external:2] Set("SIP/216.24.23.90-000002ee", "DID=5023871095") in new stack
-- Executing [5023871095@from-sip-external:3] Goto("SIP/216.24.23.90-000002ee", "s,1") in new stack
-- Goto (from-sip-external,s,1)
-- Executing [s@from-sip-external:1] GotoIf("SIP/216.24.23.90-000002ee", "0?checklang:noanonymous") in new stack
-- Goto (from-sip-external,s,5)
-- Executing [s@from-sip-external:5] Set("SIP/216.24.23.90-000002ee", "TIMEOUT(absolute)=15") in new stack
Channel will hangup at 2012-04-30 14:30:48.533 EDT.
-- Executing [s@from-sip-external:6] Answer("SIP/216.24.23.90-000002ee", "") in new stack
-- Executing [s@from-sip-external:7] Wait("SIP/216.24.23.90-000002ee", "2") in new stack
-- Executing [s@from-sip-external:8] Playback("SIP/216.24.23.90-000002ee", "ss-noservice") in new stack
-- <SIP/216.24.23.90-000002ee> Playing 'ss-noservice.ulaw' (language 'en')
216-24-23-90*CLI>