[Freeswitch-users] Why a call hangs up without warning during recording

[Anthony Minessale]

try setting record_waste_resources=true on the channel


On Sat, Jun 21, 2014 at 8:09 PM, Clive Lansink <clive at lansink.co.nz> wrote:

> Hello.
>
> I've noticed in a Freeswitch IVR application I've been working on that
> when the customer phones in to record a message, the call is hung up
> without warning after about five minutes. This does not happen when I call
> in locally. When this happens, the log just shows there was a hangup with
> normal clearing. But the customer didn't hang up. The customer just notices
> visually that their phone hangs up so the hangup seems to be caused
> somewhere between the two systems.
>
> I figured that during a recording, Freeswitch is not generating any audio
> at all, and it could be that something in the public phone system times out
> after absolutely no audio for a period of time. I have come up with a work
> around by getting Freeswitch to generate a short tone repeatedly during
> recording, like 50Hz at -30dB so it is basically inaudible, every thirty
> seconds or so. This seems to have solved the problem and now the customer
> can record for as long as he wants.
>
> But I suspect this is really a work-around and not the recommended
> approach. I did play with the suppress cng parameter in the sofia
> configuration but didn't find any setting that would solve the problem.
>
> Thankfully my work-around has got me home in the meantime but I would
> appreciate any comments on this. Does nobody make long recordings these
> days?
>
> Cheers.
>
>
> Clive Lansink
> Email: Clive at Lansink.Co.NZ
> Phone: +64 9 520-4242
> Mobile: +64 21 663-999
> Fax: +64 21 789-150
>
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>
> 
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-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

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