SIP Register Request ATCF to S-CSCF

The following is an example of the SIP REGISTER request the ATCF sends to the S-CSCF.

REGISTER sip:homel.net SIP/2.0 
Path: <sip:termsdgfdfwe@actf.visited2.net>;+g.3gpp.atcf="<tel:+1-237-888-9999>";+g.3gpp.atef-
    psi="<sip:actf.visited2.net>",<sip:aga2gfgf@pcscfl.visited2.net:5070;ob>
Route: <sip:icscf.homel.net;lr> 
P-Visited-Network-ID:
P-Charging-Vector:
Via: SIP/2.0/UDP actf.visited2.net:5060;branch=z9hG4bKnas5889; SIP/2.0/UDP 
    pcscfl.visited2.net:5060;branch=z9hG4bKnas56565, SIP/2.0/UDP 
    [5555::aaa:bbb:ccc:eee];comp=sigcomp;branch=z9hG4bKnasiuen8;rport=5060;received=5555::aaa:bbb:ccc:eee
Max-Forwards: 68
P-Access-Network-Info:
From:
To:
Contact:
Call-ID: Authorization:
Require:
Proxy-Require: 
CSeq:
Supported:
Content-Length: