[SIPForum-discussion] SIP trunk heartbeat mechanism

[Nikos Leontsinis]

Have a look here:
http://tools.ietf.org/html/draft-jones-sip-options-ping-02

If the remote endpoint is alive it should respond with an out of
dialog 200 OK to the out of dialog SIP OPTIONS request
oherwise it will not receive a response in which case it should remove
the far end sip trunk group for the routing in order to avert traffic
disruption.

/nikos



On 25 September 2013 05:21, Federico Aicardi <faicardi at gmail.com> wrote:
> Hello all,
>
> I would like to know if there is some RFC that describes the heartbeat
> mechanism in a SIP trunk (device level heartbeat).
> Particularly, I have a doubt, the scenario is the following,
>
> SIP server sends the OPTION heartbeat message
> IP PBX responds with a 503 "Service unavailable"
>
> SIP server should assume that the SIPTG is down or the status should be
> normal as the peer device responds? Is there any RFC which specifies this
> procedure?
>
> Thanks to all.
>
> Best regards,
> Federico
>
>
>
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