[OpenSIPS-Users] Problem: Registration Proxy with WebRTC

[Dragomir Haralambiev]

Hello,

I try to setup Registration proxy (opensips 2.3) like this article:
https://blog.opensips.org/2016/12/13/how-to-proxy-sip-registrations/

1. When use Zoiper all is OK
Zoiper <----> Opensips REGISTRATION Proxy <-----> SBC

2. I have problem when use WebRTC.
(*Via sent-by in the response does not match UA Via host value. Dropping
the response*):

SIP.JS <----->Opensips REGISTRATION Proxy <-----> SBC

Here is WebSocket text messages:

REGISTER sip:<IP:Opensips> SIP/2.0
Via: SIP/2.0/WSS 192.0.2.148;branch=z9hG4bK8881457
Max-Forwards: 70
To: "Tester" <sip:555999@<IP:Opensips>>
From: "Tester" <sip:555999@<IP:Opensips>>;tag=u6aro6a8mj
Call-ID: k5uhq12e1bb93rg9igvpvv
CSeq: 83 REGISTER
Contact: <sip:r0f6p7so at 192.0.2.148
;transport=wss>;reg-id=1;+sip.instance="<urn:uuid:ed6914c3-65ee-4e9a-b6e8-3fcd74cb66ac>";expires=60
Allow: ACK,CANCEL,INVITE,MESSAGE,BYE,OPTIONS,INFO,NOTIFY,REFER
Supported: path, gruu, outbound
User-Agent: SIP.js/0.7.8
Content-Length: 0



sip-0.7.8.js:2900 Sun Jul 02 2017 18:41:19 GMT+0300 (FLE Daylight Time) |
sip.transport | received WebSocket text message:

SIP/2.0 401 Unauthorized
Via: SIP/2.0/WSS 192.0.2.148:5060
;rport=53162;received=<Sip.js_IP>;branch=z9hG4bK8881457
From: "Tester" <sip:555999@<IP:Opensips>>;tag=u6aro6a8mj
To: "Tester" <sip:555999@<IP:Opensips>>
Call-ID: k5uhq12e1bb93rg9igvpvv
CSeq: 83 REGISTER
Contact: <sip:r0f6p7so@
<Sip.js_IP>:53162;transport=wss>;reg-id=1;+sip.instance="<urn:uuid:ed6914c3-65ee-4e9a-b6e8-3fcd74cb66ac>";expires=60
WWW-Authenticate: Digest realm="sbc.com", nonce="
ee228f001f1459108000000c2916c1ef at sbc.com"
Content-Length: 0



sip-0.7.8.js:2900 Sun Jul 02 2017 18:41:19 GMT+0300 (FLE Daylight Time) |
sip.sanitycheck | *Via sent-by in the response does not match UA Via host
value. Dropping the response*


Best regards,
Drgagomir
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