3CX with SideWinder's SIP Proxy

[brightidea]

Hi.

I have discovered a bug in the system's uri parser: if the request contains semicolon's it simply fails. This situation is causing the software to block any incoming call through SideWinder (Secure Computing) firewall because its sip proxy keeps adding the x-swhost tag to the caller's address for all natted requests.

example:
INVITE sip:[email protected]:53848;x-swhost=11.11.22.33 SIP/2.0
would fail, wheras
INVITE sip:[email protected]:53848 SIP/2.0
will not

Thanks for your support.

 

[archie]

Re: 3CX with SideWinder's SIP Proxy - Bug

Logs?

 

[brightidea]

Re: 3CX with SideWinder's SIP Proxy - Bug

The following is taken from log:

INVITE sip:[email protected]:13646;x-swhost=77.110.81.1 SIP/2.0
Via: SIP/2.0/UDP 192.168.10.12:13646;branch=548e5f6e247c9570
Max-Forwards: 70
Contact: <sip:[email protected]:13646;transport=udp;x-swhost=72.20.112.114;x-swport=5060>
To: "66567461425"<sip:[email protected]:13646;x-swhost=77.110.81.1>
From: "341"<sip:[email protected]:13646;x-swhost=77.110.81.1>;tag=1478176014
Call-ID: [email protected]
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Supported: ICE
User-Agent: GTalk2VoIP V7 by RZ and UGIN, Tyumen, Russia
Content-Length: 0

<br>
13:17:58.190|.\Line.cpp(331)|Log2||LineCfg::getInboundTarget:[CM503011]: Inbound office hours' rule for LN:20000 forwards to DN:<br>
13:17:58.549|.\CallCtrl.cpp(100)|Log2||CallCtrl:nIncomingCall:[CM503001]: Call(1): Incoming call from 341@(Ln.20000@outside) to <sip:192.168.10.56:5060><br>

 

[archie]

Re: 3CX with SideWinder's SIP Proxy - Bug

There's no problem with parsing headers. At least I do not see any in logs. But what I see is incorrect inbound rule which points to nowhere: "...rule for LN:20000 forwards to DN:"

 

[brightidea]

Re: 3CX with SideWinder's SIP Proxy - Bug

If it had recognized the phone number from the uri then why have it taken that path of trying to route the call it to another phone number while that option is actually turned off as I have selected 'end call' for the route of incoming calls from the voip provider (gtalk2voip / ln.30000).

The following should make the picture clearer to you - I hope

14:19:46.381 Call::Terminate [CM503008]: Call(27): Call is terminated
14:19:46.381 LineCfg::getInboundTarget [CM503011]: Inbound office hours' rule for LN:30000 forwards to DN:
14:19:46.365 LineCfg::getInboundTarget [CM503011]: Inbound office hours' rule for LN:30000 forwards to DN:
14:19:46.365 Call::RouteFailed [CM503014]: Call(27): Attempt to reach [sip:192.168.10.56:5060] failed. Reason: Not Found
14:19:46.365 CallCtrl:nSelectRouteReq [CM503013]: Call(27): No known route to target: [sip:192.168.10.56:5060]
14:19:46.365 CallCtrl:nSelectRouteReq [CM503010]: Making route(s) to [sip:192.168.10.56:5060]
14:19:46.365 MediaServerReporting::SetRemoteParty [MS210000] C:27.1:Offer received. RTP connection: 192.168.10.12:4008(4009)
14:19:46.365 CallLeg::setRemoteSdp Remote SDP is set for legC:27.1
14:19:46.365 Line:rintEndpointInfo [CM505003]: Provider:[gtalk] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [GTalk2VoIP V7 by RZ and UGIN, Tyumen, Russia] Transport: [sip:192.168.10.56:5060]
14:19:46.365 LineCfg::getInboundTarget [CM503011]: Inbound office hours' rule for LN:30000 forwards to DN:
14:19:46.350 CallCtrl:nIncomingCall [CM503001]: Call(27): Incoming call from brightidea_at_gmail.com@(Ln.30000@gtalk) to [sip:192.168.10.56:5060]
14:19:46.350 MediaServerReporting::STUN [MS101003] C:27.1: Possible firewall problem. Address mapping failed on STUN server 192.168.10.56:3478 for local address ":9004"
14:19:46.256 LineCfg::getInboundTarget [CM503011]: Inbound office hours' rule for LN:30000 forwards to DN:
14:19:46.240 CallLeg:nNewCall [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.10.12:38913;branch=75237bcd6eeea8c0
Max-Forwards: 70
Contact: [sip:[email protected]:38913;transport=udp;x-swhost=72.20.112.114;x-swport=5060]
To: "241"[sip:[email protected]:5060]
From: "brightidea_at_gmail.com"[sip:[email protected]];tag=1893647486
Call-ID: [email protected]
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Supported: ICE
User-Agent: GTalk2VoIP V7 by RZ and UGIN, Tyumen, Russia
Content-Length: 0

 

[archie]

Re: 3CX with SideWinder's SIP Proxy - Bug

Incoming calls from external lines are routed according to inbound rules ONLY and not content of request line. You have set inbound rule to end call - and it terminates the call. What is the problem then?

 

[brightidea]

Re: 3CX with SideWinder's SIP Proxy - Bug

Thank you Archie. I cleared my settings and did them again and then restarted the server. Only then it worked like I'd expected.

I believe that I need to restart the server everytime I make major changes in the settings.