[VoiceOps] SIP OPTIONS PING

[Frank Bulk]

Does anyone have some real-world experience with SIP OPTIONS PING?  Our
softswitch vendor is looking to implement support and seeking some input on
check frequency, response timeouts, how quickly to check recheck on a down,
and how long to wait after it's up before restoring the SIP trunk group.
And should there be a ramp-up period through some kind of rate-limiting?

If you have a product that does it well, what parameters does it use?

How do you think the software should handle existing calls that may or may
not have active media flows?  Should it tear down calls immediately, use
some kind of active media detection, or wait x minutes before tearing down
calls?

Any input here or offline would be appreciated.

Kind regards,

Frank