[OpenSIPS-Users] Intercept 477 on TCP closed

[Callum Guy]

Thanks Johan, exactly what the doctor ordered!

Most appreciated


On Mon, 17 Aug 2020 at 14:26, Johan De Clercq <Johan at democon.be> wrote:
>
> use t_relay wih 0x2 option.
>
> On Mon, Aug 17, 2020, 15:16 Callum Guy <callum.guy at x-on.co.uk> wrote:
>>
>> Hi All,
>>
>> Using OpenSIPs 3.0.3
>>
>> I'm dealing with a client device with a faulty network, they are using a softphone WebRTC client and the TCP connections disappear sporadically.
>>
>> When the media server issues a RE-INVITE session timer OpenSIPs discovers the closed TCP connection and returns 477 to the media server. In this case the media server is FreeSWITCH which promptly ignores the non-standard session timer response and the call hangs. I want to close the call immediately in this situation as there is no way I can see to reestablish the connection. The call is typically bridged on the media server so the other call leg is left dangling indefinitely so I need to find a way to kill the session.
>>
>> Reading RFC4028 the only response codes that should trigger a BYE are 408/481 so my aim is to intercept the 477 and alter it. Unfortunately I have been unable to intercept it within my OpenSIPs config as the messages don't hit failure_route or similar. Am I missing a trick? Is there somewhere where these can be intercepted or should I be looking into a solution on the media server instead?
>>
>> Many thanks,
>>
>> Callum
>>
>>
>> 0333 332 0000  |  x-on.co.uk  |          |  Coronavirus
>>
>> THE ITSPA AWARDS 2020 AND Best ITSP - Mid Market, Best Software and Best Vertical Solution are trade marks of the Internet Telephony Services Providers' Association, used under licence.
>>
>> X-on is a trading name of Storacall Technology Ltd a limited company registered in England and Wales.
>> Registered Office : Avaland House, 110 London Road, Apsley, Hemel Hempstead, Herts, HP3 9SD. Company Registration No. 2578478.
>> The information in this e-mail is confidential and for use by the addressee(s) only. If you are not the intended recipient, please notify X-on immediately on +44(0)333 332 0000 and delete the
>> message from your computer. If you are not a named addressee you must not use, disclose, disseminate, distribute, copy, print or reply to this email. Views or opinions expressed by an individual
>> within this email may not necessarily reflect the views of X-on or its associated companies. Although X-on routinely screens for viruses, addressees should scan this email and any attachments
>> for viruses. X-on makes no representation or warranty as to the absence of viruses in this email or any attachments.
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

-- 





*0333 332 0000  |  x-on.co.uk <https://www.x-on.co.uk>  |   ** 
<https://www.linkedin.com/company/x-on>   <https://www.facebook.com/XonTel> 
  <https://twitter.com/xonuk> **  |  Coronavirus 
<https://www.x-on.co.uk/service/surgery-connect/coronavirus.htm>*


THE 
ITSPA AWARDS 2020 <http://www.itspa.org.uk/itspa-awards> AND Best ITSP - 
Mid Market, Best Software and Best Vertical Solution are trade marks of the 
Internet Telephony Services Providers' Association, used under licence.


X-on
is a trading name of Storacall Technology Ltd a limited company 
registered in
England and Wales.

Registered Office : Avaland House, 110 
London Road, Apsley, Hemel Hempstead,
Herts, HP3 9SD. Company Registration 
No. 2578478.

The information in this e-mail is confidential and for use by 
the addressee(s)
only. If you are not the intended recipient, please notify 
X-on immediately on +44(0)333 332 0000 and delete the
message from your 
computer. If you are not a named addressee you must not use,
disclose, 
disseminate, distribute, copy, print or reply to this email. Views
or 
opinions expressed by an individual
within this email may not necessarily

reflect the views of X-on or its associated companies. Although X-on 
routinely
screens for viruses, addressees should scan this email and any 
attachments
for
viruses. X-on makes no representation or warranty as to the 
absence of viruses
in this email or any attachments.