In WebRTC (websocket) the contact header always has invalid URI, so, you MUST either use path module OR add contact alias for both REGISTER and SUBSCRIBE requests otherwise any subsequent incoming SIP requests such as INVITE and NOTIFY won't be routed to endpoint (SIP client). See websocket module documentation which has an example configuration script for handling these requests. Kind regards, -- Muhammad Shahzad Shafi Tel: +49 176 99 83 10 85 On Tue, Dec 20, 2022, 13:40 Giovanni Iamonte &lt;iamonte(a)quintetto.it&gt; wrote: Dear List We have configured kamailio to work as a proxy edge and register. As a proxy edge cfg file we have used the example *edge_websocket.cfg.** * We are developing two different client the first one based on *PJSIP* and the other one based *JsSIP*. Client PJSIP (no websockets) everything work perfectly, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, INVITE Client JsSIP (with websockets) The REGISTER, SUBSCRIBE works, the NOTIFY does not work. In more in details we have:    Browser                    Proxy Edge                        Register Client JsSIP Websocket   | |                                |   | |                                |   | ----------Register-----------> | -----------Register----------> |   | <----------200 OK  ----------- | <----------200 OK  ----------- |   |                                |                                |   | ----------Subscribe----------> | -----------Subscribe---------> |   | <----------200 OK  ----------- | <----------200 OK  ----------- |   | |                                |   |                          X<--- | <----------NOTIFY  ----------- |   | |                                | As you can see the NOTIFY start from Register and reach the proxy, beloe the Register log file and the sip messages. Could somebody put me in the right direction. Thanks Bye *Log File* Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/tcp_read.c:1533]: tcp_read_req(): content-length=0 Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/parse_fline.c:249]: parse_first_line(): first line type 2 (reply(status)) flags 1 Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/msg_parser.c:689]: parse_msg(): SIP Reply  (status): Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/msg_parser.c:690]: parse_msg():  version: <SIP/2.0> Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/msg_parser.c:692]: parse_msg():  status:  <478> Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/msg_parser.c:694]: parse_msg():  reason:  <Unresolvable destination (478/SL)> Dec 20 10:51:58 kr-server /usr/sbin/kamailio[87875]: DEBUG: <core> [core/parser/parse_hname2.c:301]: parse_sip_header_name(): parsed header name [Via] type 1 *Sip Messages* *REGISTER* sip:sip-register.quintetto.it <http://sip-register.quintetto.it> SIP/2.0 Via: SIP/2.0/WSS 13569868356.invalid;branch=z9hG4bK7825787 Max-Forwards: 69 To: <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it> From: "quintetto00" <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=2tnuk9btmp Call-ID: unrnseei8924hf67khoi3g CSeq: 2 REGISTER Authorization: Digest algorithm=MD5, username="quintetto00", realm="sip-register.quintetto.it <http://sip-register.quintetto.it>", nonce="Y6GUq2Ohk3//HTza7ZYMfd85XMdavgnc", uri="sip:sip-register.quintetto.it <http://sip-register.quintetto.it>", response="c9cc56d2d5e36b0a68873c1d5258d062" Contact: <sip:quintetto00@13569868356.invalid;transport=ws> <mailto:sip:quintetto00@13569868356.invalid;transport=ws>;+sip.ice;reg-id=1;+sip.instance="<urn:uuid:64e71c57-fd55-4868-be2b-a4a3fa546ac8>";expires=3600 Expires: 3600 Allow: INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO,NOTIFY,SUBSCRIBE,PUBLISH Supported: path,gruu,outbound User-Agent: JsSIP 3.10.0 Content-Length: 0 SIP/2.0 *200 OK* Via: SIP/2.0/WSS 13569868356.invalid;rport=37566;received=192.168.100.192;branch=z9hG4bK7825787 To: <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=2b789d0fa67ad6c2da65f0cce35dd60b.71a84df9 From: "quintetto00" <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=2tnuk9btmp Call-ID: unrnseei8924hf67khoi3g CSeq: 2 REGISTER Contact: <sip:quintetto00@13569868356.invalid;transport=ws> <mailto:sip:quintetto00@13569868356.invalid;transport=ws>;expires=3600;+sip.instance="<urn:uuid:64e71c57-fd55-4868-be2b-a4a3fa546ac8>";reg-id=1 Server: kamailio (5.6.2 (x86_64/linux)) Content-Length: 0 *SUBSCRIBE* sip:quintetto03@sip-register.quintetto.it SIP/2.0 Via: SIP/2.0/WSS 13569868356.invalid;branch=z9hG4bK3648599 Max-Forwards: 69 To: <sip:quintetto03@sip-register.quintetto.it> <mailto:sip:quintetto03@sip-register.quintetto.it> From: "quintetto00" <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=o261bh2uh7 Call-ID: 4beh90hur8hdhptnbjt8 CSeq: 5813 SUBSCRIBE Proxy-Authorization: Digest algorithm=MD5, username="quintetto00", realm="sip-register.quintetto.it <http://sip-register.quintetto.it>", nonce="Y6GU+mOhk86y3fnrMzoKgiVAdkaTvBId", uri="sip:quintetto03@sip-register.quintetto.it" <mailto:sip:quintetto03@sip-register.quintetto.it>, response="04ca6d83661ac338810baa95ffaa568b" Event: presence Expires: 3600 Accept: application/pidf+xml, application/xpidf+xml Contact: <sip:quintetto00@13569868356.invalid;transport=ws> <mailto:sip:quintetto00@13569868356.invalid;transport=ws> Content-Type: application/pidf+xml Allow: INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO,NOTIFY,SUBSCRIBE,PUBLISH Supported: outbound User-Agent: JsSIP 3.10.0 Content-Length: 35 SIP/2.0 *200 OK* Record-Route: <sip:192.168.100.24:15006;transport=tcp;r2=on;lr> Record-Route: <sip:192.168.100.24:16005;transport=ws;r2=on;lr> Via: SIP/2.0/WSS 13569868356.invalid;rport=37566;received=192.168.100.192;branch=z9hG4bK3648599 To: <sip:quintetto03@sip-register.quintetto.it> <mailto:sip:quintetto03@sip-register.quintetto.it>;tag=c906ce7d8b5c7cc84a3505ebe369640b-e45527ec From: "quintetto00" <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=o261bh2uh7 Call-ID: 4beh90hur8hdhptnbjt8 CSeq: 5813 SUBSCRIBE Expires: 3600 Contact: <sip:192.168.100.23:15006;transport=tcp> Server: kamailio (5.6.2 (x86_64/linux)) Content-Length: 0 *NOTIFY*.sip:quintetto00@13569868356.invalid;transport=ws.SIP/2.0 Via:.SIP/2.0/TCP.1 92.168.100.23:15 <http://92.168.100.23:15> 006;branch=z9hG4bK28ad.a5d3bdf6000000000000000000000000.0 To: <sip:quintetto00@sip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=o261bh2uh7 From: <sip:quintetto03@sip-register.quintetto.it> <mailto:sip:quintetto03@sip-register.quintetto.it>;tag=c906ce7d8b5c7cc84a3505ebe369640b-e45527ec CSeq : 2 NOTIFY Call-ID:.4beh90hur8h dhptnbjt8 Route : <sip:192.168.1 00.24:15006;transport=tcp;r2=on;lr>,.<sip:192.16 8.100.24:16005;transport=ws;r2=on;lr> Content-Length:.0 User-Agent: kamailio.(5.6.2.(x86_64/li nux)) Max-Forwards:.70 Event: presence Contact:.<sip:192.168.100.23:15006;transport=tcp> Subscription-State: active;expires= 3600 SIP/2.0.478.Unresolvable.destination.(478/SL) Via: SIP/2.0/TC P.192.168.100.23 :15006;branch=z9hG4bK28ad.a5d3bdf6000000000000000000000000.0;rport=38019 To:.<sip:quintetto00@s ip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=o261bh2uh7 From: <sip:quintetto03 @sip-register.quintetto.it <http://sip-register.quintetto.it>>;tag=c906ce7d8b5c7cc84a3505ebe369640b-e45527ec CSeq: 2 NOTIFY Call-ID: 4beh90hur8hdhptnbjt8 Server :.kamailio.(5.6.2.(x86_64/linux)) Content-Length: 0 SIP/2.0.478.Unresolvable.destination.(478/TM) Via: SIP/2.0/TC P.192.168.100.23:15006;branch=z9hG4bK28ad.a5d3bdf6000000000000000000000000.0;rport=38019 To: <sip:quintetto00@s ip-register.quintetto.it> <mailto:sip:quintetto00@sip-register.quintetto.it>;tag=o261bh2uh7 From: <sip:quintetto03 @sip-register.quintetto.it <http://sip-register.quintetto.it>>;tag=c906ce7d8b5c7cc84a3505ebe369640b-e45527ec CSeq: 2 NOTIFY Call-ID: 4beh90hur8hdhptnbjt8 Server : kamailio.(5.6.2.(x86_64/linux)) Content-Length: 0 -- ------------------------------------------------------------------------ Ing. Giovanni Iamonte Developments and technologies area Quintetto Srl Via Monte Navale, 1 10015 - Ivrea (TO)  mobile: +39 393 9196310  tel: +39 0165 1845290  e-mail: giovanni.iamonte(a)quintetto.it  web: www.quintetto.it <http://www.quintetto.it> __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email tosr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:

Hi I tried to figured out what you said and I made some tests but without success. Let me give you more info. Scenario 1 Our issue is due to the Proxy Edge, indeed if we configuring the Register (We have followed the websocket module documentation) to directly manage the request from client everything works fine. Browser Register Client JsSIP Websocket | | | | | ----------Register-----------> | | <----------200 OK ----------- | | | | ----------Subscribe----------> | | <----------200 OK ----------- | | | | <----------NOTIFY ----------- | | | Scenario 2 Instead when we configuring the proxy edge with websocket (we have followed the *edge_websocket.cfg* example) and the register without websocket we face the issue. As I wrote in my previous mail into the log file of both proxy and register server we find "*Unresolvable destination (478/SL*". Browser Proxy Edge Register Client JsSIP Websocket no websocket | | | | | | | ----------Register-----------> | -----------Register----------> | | <----------200 OK ----------- | <----------200 OK ----------- | | | | | ----------Subscribe----------> | -----------Subscribe---------> | | <----------200 OK ----------- | <----------200 OK ----------- | | | | | X<--- | <----------NOTIFY ----------- | | | | Could you please give more details to solve this issue. Thanks a lot for your time. Regards ------------------------------ Ing. Giovanni Iamonte Developments and technologies area Quintetto Srl Via Monte Navale, 1 10015 - Ivrea (TO)  mobile: +39 393 9196310  tel: +39 0165 1845290  e-mail: giovanni.iamonte(a)quintetto.it  web: www.quintetto.it On 20/12/22 14:47, M S wrote: In WebRTC (websocket) the contact header always has invalid URI, so, you MUST either use path module OR add contact alias for both REGISTER and SUBSCRIBE requests otherwise any subsequent incoming SIP requests such as INVITE and NOTIFY won't be routed to endpoint (SIP client). See websocket module documentation which has an example configuration script for handling these requests. Kind regards, -- Muhammad Shahzad Shafi Tel: +49 176 99 83 10 85 On Tue, Dec 20, 2022, 13:40 Giovanni Iamonte &lt;iamonte(a)quintetto.it&gt; wrote: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: