        My ser 2.0 receive the flollowing INVITE from cisco PGW:

U 192.168.63.180:5060 -> 192.168.63.171:5060
INVITE sip:0507827100@192.168.63.171;user=phone SIP/2.0
Max-Forwards: 9
Session-Expires: 3600;Refresher=uac
Supported:timer
To: 0507827100 <sip:0507827100@192.168.63.171;user=phone>
From: 3357576993 <sip:3357576993@192.168.63.180:5060;user=phone>;tag=1156006534
Contact: <sip:3357576993@192.168.63.180:5060;user=phone>
Call-ID: 2513-3436611029-691218@Sbc-2-csinfo-net.csinfo.net
CSeq: 1 INVITE
   Via: SIP/2.0/UDP 192.168.63.180:5060;branch=z9hG4bKf0f0dcd77e2cc37f9c82a161652bf470
   Content-Type: application/sdp.
   .................................
   ................................
#
U 192.168.63.171:5060 -> 192.168.63.180:5060
SIP/2.0 404 No route matched
To: 0507827100 <sip:0507827100@192.168.63.171;user=phone>;tag=69435b9d404e8240630ad84d946ce4cc.add8
From: 3357576993 <sip:3357576993@192.168.63.180:5060;user=phone>;tag=1156006534
Call-ID: 2513-3436611029-691218@Sbc-2-csinfo-net.csinfo.net
CSeq: 1 INVITE..Via: SIP/2.0/UDP 192.168.63.180:5060;branch=z9hG4bKf0f0dcd77e2cc37f9c82a161652bf470
   Server: Sip EXpress router (2.0.0-rc1 (i386/linux))
   Content-Length: 0
   .........................................
   .........................................
If I rewrite uri:
    rewriteuri("sip:0507827100@192.168.63.171");
    or
    rewriteuri("sip:0507827100@192.168.63.171;user=0507827100");

    All ok.

             
thanks for help