[VoiceOps] SIP calls that aren't torn down

Jon Radel jradel at vantage.com
Tue Jun 7 15:30:04 EDT 2011

That's pretty much what Broadworks does with its configurable idle 
watchdog timer.  Of course, every now and then it gets confused and 
tears down lots of conference bridge legs if the conference runs over 2 
hours.....which is the maximum we can set the timer to.

--Jon Radel

On 6/7/11 3:25 PM, Frank Bulk wrote:
> Over the last few months our softswitch has accumulated 10 "stuck" calls
> where there's no media traffic.  From what the softswitch vendor can tell or
> guess, it just didn't receive a BYE to tear down the call.
> We know that most SIP traffic on 5060 is UDP, and UDP is connectionless.
> How are other vendors and systems managing such scenarios?  I suggested a
> "no media" test where after x hours of no media, to tear down the call and
> log the info.
> Thoughts?
> Frank
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