[OpenSIPS-Users] ACK did not Receive on Proxy and get in loop

[Bogdan-Andrei Iancu]

Hi Hamid,

I see the UAS is breaking the contact by re-writing it with the IP of 
the proxy. Is the UAS an opensips too, by chance ?

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 09.09.2015 14:21, Hamid Hashmi wrote:
> Bogdan
>
> I used local cache to store the Request URI and then changed the 
> contact Header of 200 OK at Proxy by replacing the contact from RURI. 
> It worked for me. But you can see in 200 OK UAS-Proxy that UAS is 
> changing the Contact with proxy IP.
>
> *Bob-Proxy*
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.84c78b97.0
> Via: SIP/2.0/UDP sipuas.com:7000;branch=z9hG4bK9347.4f022b62.0
> Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
> Via: SIP/2.0/UDP 
> 172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
> Record-Route: 
> <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
> Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
> To: <sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
> From: "+923071000201" <sip:+923071000201 at sip.realm.com>;tag=1397829413
> Call-ID: 146889629
> CSeq: 21 INVITE
> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, 
> INFO, SUBSCRIBE
> Content-Type: application/sdp
> Supported: replaces, norefersub, extended-refer, timer, outbound, 
> path, X-cisco-serviceuri
> User-Agent: Zoiper r30645
> Allow-Events: presence, kpml
> Content-Length: 243
>
> *proxy-UAS*
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP sipuas.com:7000;branch=z9hG4bK9347.4f022b62.0
> Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
> Via: SIP/2.0/UDP 
> 172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
> Record-Route: 
> <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
> Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
> To: <sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
> From: "+923071000201" <sip:+923071000201 at sip.realm.com>;tag=1397829413
> Call-ID: 146889629
> CSeq: 21 INVITE
> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, 
> INFO, SUBSCRIBE
> Content-Type: application/sdp
> Supported: replaces, norefersub, extended-refer, timer, outbound, 
> path, X-cisco-serviceuri
> User-Agent: Zoiper r30645
> Allow-Events: presence, kpml
> Content-Length: 243
>
> *UAS-Proxy*
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP proxy.com:7000;branch=z9hG4bK9347.74c78b97.0
> Via: SIP/2.0/UDP 
> 172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
> Record-Route: 
> <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
> Contact: <sip:923071000202 at proxy.com:7000;transport=UDP>
> To: <sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
> From: <sip:923071000201 at sip.realm.com:7000>;tag=1397829413
> Call-ID: 146889629
> CSeq: 21 INVITE
> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, 
> INFO, SUBSCRIBE
> Content-Type: application/sdp
> Supported: replaces, norefersub, extended-refer, timer, outbound, 
> path, X-cisco-serviceuri
> User-Agent: Zoiper r30645
> Allow-Events: presence, kpml
> Content-Length: 257
>
> *Proxy-Alice **# remove_hf("Contact");  append_hf("Contact: 
> <$var(uri)>;transport=UDP>/r/n");*
>
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP 
> 172.16.37.66:5065;received=203.215.176.22;rport=33611;branch=z9hG4bK266489159
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413>
> Record-Route: 
> <sip:923071000202 at sipuas.com:7000;lr;ftag=1397829413;did=bbf.3846c9b2>
> Record-Route: <sip:proxy.com:7000;lr;ftag=1397829413;EdgeProxy=true>
> To: <sip:923071000202 at sip.realm.com:7000>;tag=ab9efd6a
> From: <sip:923071000201 at sip.realm.com:7000>;tag=1397829413
> Call-ID: 146889629
> CSeq: 21 INVITE
> Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, 
> INFO, SUBSCRIBE
> Content-Type: application/sdp
> Supported: replaces, norefersub, extended-refer, timer, outbound, 
> path, X-cisco-serviceuri
> User-Agent: Zoiper r30645
> Allow-Events: presence, kpml
> Content-Length: 257
> Contact: <sip:923071000202 at 139.190.68.251:34580;transport=UDP>
>
>
> Regards
> Hamid R. Hashmi
>

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