getting 480 no route found

Hi All,

Just a quick question that I cant seem to understand why im getting a 480 route not found. My local policy has a from address (10 digit number) and I can see the invite has the same FROM address and the RPID also has the same 10 digit number yet the call doesn’t route.

Any ideas?

INVITE sip:16135551212@10.44.16.20:5060 SIP/2.0

Via: SIP/2.0/UDP 10.64.2.4:5060;received=10.64.2.4;branch=z9hG4bK-524287-1---a55807316d59f807;rport=5060

Max-Forwards: 70

Contact: <sip:10.64.2.4:5060>

To: <sip:16135551212@10.44.16.20:5060>

From: "8889990000"<sip:10.44.16.20:5060>;tag=0c64a67c

Call-ID: Vom3bmsx3RQu88wMnGSrnw..

CSeq: 1 INVITE

Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE, UPDATE