This is what I get on outbound calls. Is this what you were talking about Ralph?
2015-10-12 13:12:41 SSP Network->STS
SIP/2.0 406 Service Unavailable-No Ports Available
Supported: 100rel
Via: SIP/2.0/UDP 10.222.0.2:5060;branch=z9hG4bK1877195552-103910528
To: <sip:8667543@[Edit]>;tag=3[Edit]-676909
From: "T.Holman" <sip:[Edit]@10.222.0.2>;tag=0_1877195552-103910529
P-Asserted-Identity: "T.Holman" <sip:[Edit]@10.222.0.2>
Call-ID: 1877195552-103910527
CSeq: 1 INVITE
Allow: PUBLISH,MESSAGE,UPDATE,PRACK,SUBSCRIBE,REFER,INFO,NOTIFY,REGISTER,OPTIONS,BYE,INVITE,ACK,CANCEL
Contact: <sip:8667543@[Edit]:5060>
Content-Length: 0