[OpenSIPS-Users] Help: Understanding ACK loop
spady
spady77 at gmail.com
Tue Nov 6 13:44:03 CET 2012
Hi, i had to rewrite post because the preview one was too big. Sorry for this
mistake!! Here is the new, short, one:
Hi, thanks for reply.
Here the SIP dump and after it, configuration.
IP 172.16.55.100 = Opensips Gw
IP 10.9.6.3 = PBX
IP 10.9.6.40 = Gateway GSM
The problem is when i receive a ACK from Ip 10.9.6.40, Opensips never send
ACK to 10.9.6.3 but instead it sends to itself in a loop way!!!
2012/10/31 15:01:58.415722 10.9.6.40:5060 -> 172.16.55.100:5060
INVITE sip:2542 at 172.16.55.100:5060 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Max-Forwards: 70.
Content-Length: 228.
Allow: INVITE, BYE, ACK, CANCEL, REGISTER, OPTIONS, REFER, NOTIFY, INFO.
Record-Route: <sip:10.9.6.40>.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Type: application/sdp.
User-Agent: QuesCom SIP Gateway 5.21.028.
.
v=0.
o=QuesCom 1117304981 1117304981 IN IP4 10.9.6.40.
s=NonSIP.
c=IN IP4 10.9.6.40.
t=0 0.
m=audio 11278 RTP/AVP 18 8 0.
a=rtpmap:18 g729/8000/1.
a=fmtp:18 annexb=no.
a=rtpmap:8 pcma/8000/1.
a=rtpmap:0 pcmu/8000/1.
a=sendrecv.
U 2012/10/31 15:01:58.422423 172.16.55.100:5060 -> 10.9.6.40:5060
SIP/2.0 100 Giving a try.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Server: OpenSIPS.
Content-Length: 0.
.
U 2012/10/31 15:01:58.423041 172.16.55.100:5060 -> 10.9.6.3:5060
INVITE sip:2542 at 10.9.6.3:5060 SIP/2.0.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Max-Forwards: 69.
Content-Length: 228.
Allow: INVITE, BYE, ACK, CANCEL, REGISTER, OPTIONS, REFER, NOTIFY, INFO.
Record-Route: <sip:10.9.6.40>.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Type: application/sdp.
User-Agent: QuesCom SIP Gateway 5.21.028.
.
v=0.
o=QuesCom 1117304981 1117304981 IN IP4 10.9.6.40.
s=NonSIP.
c=IN IP4 10.9.6.40.
t=0 0.
m=audio 11278 RTP/AVP 18 8 0.
a=rtpmap:18 g729/8000/1.
a=fmtp:18 annexb=no.
a=rtpmap:8 pcma/8000/1.
a=rtpmap:0 pcmu/8000/1.
a=sendrecv.
U 2012/10/31 15:01:58.425799 10.9.6.3:5060 -> 172.16.55.100:5060
SIP/2.0 100 Trying.
To: <sip:2542 at 172.16.55.100>.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 0.
.
U 2012/10/31 15:01:58.432723 10.9.6.3:5060 -> 172.16.55.100:5060
SIP/2.0 180 Ringing.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 0.
.
U 2012/10/31 15:01:58.434309 172.16.55.100:5060 -> 10.9.6.40:5060
SIP/2.0 180 Ringing.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 0.
.
U 2012/10/31 15:02:02.908748 10.9.6.3:5060 -> 172.16.55.100:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:02.913036 172.16.55.100:5060 -> 10.9.6.40:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:02.918144 10.9.6.40:5060 -> 172.16.55.100:5060
ACK sip:172.16.55.100;lr;did=021.929cd6c2 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 ACK.
Max-Forwards: 70.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Route: sip:10.9.6.3.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKyugtlplC14701805118363.
.
U 2012/10/31 15:02:02.919412 172.16.55.100:5060 -> 172.16.55.100:5060
ACK sip:172.16.55.100;lr;did=021.929cd6c2 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 ACK.
Max-Forwards: 69.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Route: sip:10.9.6.3.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKyugtlplC14701805118363.
.
U 2012/10/31 15:02:02.920799 172.16.55.100:5060 -> 172.16.55.100:5060
ACK sip:172.16.55.100;lr;did=021.929cd6c2 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 ACK.
Max-Forwards: 68.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Route: sip:10.9.6.3.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKyugtlplC14701805118363.
.
U 2012/10/31 15:02:02.925994 172.16.55.100:5060 -> 172.16.55.100:5060
ACK sip:172.16.55.100;lr;did=021.929cd6c2 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 ACK.
Max-Forwards: 67.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Route: sip:10.9.6.3.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKyugtlplC14701805118363.
.
U 2012/10/31 15:02:02.927708 172.16.55.100:5060 -> 172.16.55.100:5060
ACK sip:172.16.55.100;lr;did=021.929cd6c2 SIP/2.0.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 ACK.
Max-Forwards: 66.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
Route: sip:10.9.6.3.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.2.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKyugtlplC14701805118363.
.
.
.
.
.
.
U 2012/10/31 15:02:04.419928 10.9.6.3:5060 -> 172.16.55.100:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:04.422084 172.16.55.100:5060 -> 10.9.6.40:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:06.430003 10.9.6.3:5060 -> 172.16.55.100:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK1125.b8ca83d.0.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:06.431040 172.16.55.100:5060 -> 10.9.6.40:5060
SIP/2.0 200 OK.
Record-Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Record-Route: <sip:10.9.6.40>.
Allow: INVITE, ACK, CANCEL, BYE, PRACK, NOTIFY, REFER, SUBSCRIBE, OPTIONS,
UPDATE.
Contact: sip:10.9.6.3.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
Session-Expires: 1800;refresher=uas.
P-Asserted-Identity: "User A" <sip:5222542 at 10.9.6.3;user=phone>.
Content-Type: application/sdp.
To: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
From: <sip:+xxxxxxxxxxxx at 10.9.6.40>;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 19584 INVITE.
Via: SIP/2.0/UDP 10.9.6.40:5060;branch=z9hG4bKiekjcfzC14701805113857.
Content-Length: 197.
.
v=0.
o=OXE 1351691970 1351691970 IN IP4 10.9.6.3.
s=abs.
c=IN IP4 172.16.52.215.
t=0 0.
m=audio 32514 RTP/AVP 18.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=ptime:30.
a=maxptime:40.
U 2012/10/31 15:02:06.900754 10.9.6.3:5060 -> 172.16.55.100:5060
BYE sip:+xxxxxxxxxxxx at 10.9.6.40 SIP/2.0.
Route: <sip:172.16.55.100;lr;did=021.929cd6c2>.
Route: <sip:10.9.6.40>.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
To: sip:+xxxxxxxxxxxx at 10.9.6.40;tag=q-7313-723a.
From: sip:2542 at 172.16.55.100;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 681073280 BYE.
Via: SIP/2.0/UDP 10.9.6.3;branch=z9hG4bKaaf0140ecdc34f34e54c040cf2fb83ba.
Max-Forwards: 70.
Content-Length: 0.
.
U 2012/10/31 15:02:06.902711 172.16.55.100:5060 -> 10.9.6.40:5060
BYE sip:10.9.6.40 SIP/2.0.
Supported: replaces,timer,path,100rel.
User-Agent: OmniPCX Enterprise R10.0 j1.410.45.a.
To: sip:+xxxxxxxxxxxx at 10.9.6.40;tag=q-7313-723a.
From: sip:2542 at 172.16.55.100;tag=be6dedc56089bca6b558af187479406f.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 681073280 BYE.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK6ee9.54906f9.0.
Via: SIP/2.0/UDP 10.9.6.3;branch=z9hG4bKaaf0140ecdc34f34e54c040cf2fb83ba.
Max-Forwards: 69.
Content-Length: 0.
Route: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
.
U 2012/10/31 15:02:06.905593 10.9.6.40:5060 -> 172.16.55.100:5060
SIP/2.0 200 Ok.
Via: SIP/2.0/UDP 172.16.55.100;branch=z9hG4bK6ee9.54906f9.0.
Via: SIP/2.0/UDP 10.9.6.3;branch=z9hG4bKaaf0140ecdc34f34e54c040cf2fb83ba.
From: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
To: sip:+xxxxxxxxxxxx at 10.9.6.40;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 681073280 BYE.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
User-Agent: QuesCom SIP Gateway 5.21.028.
.
U 2012/10/31 15:02:06.906364 172.16.55.100:5060 -> 10.9.6.3:5060
SIP/2.0 200 Ok.
Via: SIP/2.0/UDP 10.9.6.3;branch=z9hG4bKaaf0140ecdc34f34e54c040cf2fb83ba.
From: <sip:2542 at 172.16.55.100>;tag=be6dedc56089bca6b558af187479406f.
To: sip:+xxxxxxxxxxxx at 10.9.6.40;tag=q-7313-723a.
Call-ID: 1351688617136291 at 10.9.6.40.
CSeq: 681073280 BYE.
Content-Length: 0.
Contact: <sip:+xxxxxxxxxxxx at 10.9.6.40>.
User-Agent: QuesCom SIP Gateway 5.21.028.
#####################################################
# ----------------- Routing Logic ----------------- #
#####################################################
# main request routing logic
route{
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
exit;
}
#########################################
#----- Sequential requests section -----#
#########################################
if (has_totag()) {
if (loose_route()) {
if ( $DLG_status!=NULL && !validate_dialog() ) {
## exit;
}
if (is_method("BYE")) {
setflag(1); # do accounting ...
setflag(3); # ... even if the transaction
fails
} else if (is_method("INVITE")) {
# even if in most of the cases is useless,
do RR for
# re-INVITEs alos, as some buggy clients do
change route set
# during the dialog.
record_route();
}
# route it out to whatever destination was set by
loose_route()
# in $du (destination URI).
route(1);
} else {
if ( is_method("ACK") ) {
if ( t_check_trans() ) {
# non loose-route, but stateful ACK;
must be an ACK after
# a 487 or e.g. 404 from upstream
server
t_relay();
exit;
} else {
# ACK without matching transaction
->
# ignore and discard
exit;
}
}
sl_send_reply("404","Not here");
}
exit;
}
######################################
#----- Initial requests section -----#
######################################
# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}
t_check_trans();
if ( !(is_method("REGISTER") || (src_ip==172.16.55.100 &&
src_port==5060 /* CUSTOMIZE ME */) ) ) {
if (from_uri==myself)
{
# authenticate if from local subscriber
# authenticate all initial non-REGISTER request that
pretend to be
# generated by local subscriber (domain from FROM
URI is local)
if (!proxy_authorize("", "subscriber")) {
proxy_challenge("", "0");
exit;
}
if (!db_check_from()) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
consume_credentials();
# caller authenticated
} else {
# if caller is not local, then called number must be
local
if (!uri==myself) {
send_reply("403","Rely forbidden");
exit;
}
}
}
######################################
#----- Preloaded Route Checking -----#
######################################
if (loose_route()) {
xlog("L_ERR",
"Attempt to route with preloaded Route's
[$fu/$tu/$ru/$ci]");
if (!is_method("ACK"))
sl_send_reply("403","Preload Route denied");
exit;
}
# record routing
if (!is_method("REGISTER|MESSAGE"))
record_route();
# account only INVITEs
if (is_method("INVITE")) {
# create dialog with timeout
if ( !create_dialog("B") ) {
send_reply("500","Internal Server Error");
exit;
}
setflag(1); # do accounting
}
if (!uri==myself) {
append_hf("P-hint: outbound\r\n");
route(1);
}
# requests for my domain
if (is_method("PUBLISH|SUBSCRIBE"))
{
sl_send_reply("503", "Service Unavailable");
exit;
}
if (is_method("REGISTER"))
{
# authenticate the REGISTER requests
if (!www_authorize("", "subscriber"))
{
www_challenge("", "0");
exit;
}
if (!db_check_to())
{
sl_send_reply("403","Forbidden auth ID");
exit;
}
if ( proto==TCP || 0 ) setflag(7);
if (!save("location"))
sl_reply_error();
exit;
}
if ($rU==NULL) {
# request with no Username in RURI
sl_send_reply("484","Address Incomplete");
exit;
}
##################################
#----- Group Routing Params -----#
##################################
if (src_ip == 10.9.6.40) {
#relay request to ALCATEL OXE
route(2);
exit;
}
if (src_ip == 10.9.6.3) {
#relay request to QUESCOM
route(3);
exit;
}
# apply DB based aliases
alias_db_lookup("dbaliases");
# apply transformations from dialplan table
dp_translate("0","$rU/$rU");
# do lookup with method filtering
if (!lookup("location","m")) {
if (!db_does_uri_exist()) {
send_reply("420","Bad Extension");
exit;
}
t_newtran();
t_reply("404", "Not Found");
exit;
}
# when routing via usrloc, log the missed calls also
setflag(2);
route(1);
}
######################
# ----- Routes ----- #
######################
route[1] {
# for INVITEs enable some additional helper routes
if (is_method("INVITE")) {
t_on_branch("2");
t_on_reply("2");
t_on_failure("1");
}
if (!t_relay()) {
send_reply("500","Internal Error");
};
exit;
}
route[2] {
rewritehostport("10.9.6.3:5060");
t_relay("udp:10.9.6.3:5060");
}
route[3] {
rewritehostport("10.9.6.40:5060");
t_relay("udp:10.9.6.40:5060");
}
branch_route[2] {
xlog("#########new branch at $ru\n");
}
onreply_route[2] {
xlog("###########incoming reply [ONREPLY 2]\n");
}
failure_route[1] {
if (t_was_cancelled()) {
exit;
}
}
local_route {
if (is_method("BYE") && $DLG_dir=="UPSTREAM") {
acc_db_request("200 Dialog Timeout", "acc");
}
}
--
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