[OpenSIPS-Users] Dialog Ping

Vlad Paiu vladpaiu at opensips.org
Fri Jun 17 10:11:04 CEST 2011

Hello Brett,

Yes, the OPTIONs messages are dialog specific. They contain the proper 
to tag, from tag and callid, as well as the appropriate CSEQ header, etc.
If one end-point isn't alive anymore, or if it responds with a messages 
telling that the end point is not aware of the dialog the message 
belongs to ( 481 Call/Transaction does not exist - like, for example, 
the UA quickly reboots, it is alive, but the dialog is not active from 
it's point of view ), the dialog will be killed from the middle.


Vlad Paiu
OpenSIPS Developer

On 06/16/2011 11:50 PM, Brett Nemeroff wrote:
> Hello All,
> I had a question regarding the new "dialog ping" feature. Does this 
> just check if the endpoints involved in a dialog are alive? Or is 
> there anything dialog specific in the OPTIONs message?
> Thanks,
> Brett
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

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