Thank you for details, we will check for the symptoms (whether end user phone was disconnected earlier or not).
If we are not hitting FAS, any tech idea what could cause such an issue?

On Sat, 1 Feb 2020 at 20:42, Gregor Nanger <gregor@infomedia.si> wrote:
https://en.m.wikipedia.org/wiki/False_Answer_Supervision

One repeats audio conversation to keep a side connected as long as possible although b side is disconnected on carrier side. 

Can you check, if upon audio repetition, end user phone is disconnected? 


On Sat, 1 Feb 2020, 15:10 Tamas Jalsovszky, <jalsot@gmail.com> wrote:
What does FAS stand for?
Any other idea if not a fraud, what kind of tech issue it might be? I was thinking about a messed echo canceller or messed up jitterbuffer, but it is not very probable due to long timing (80 sec is extremely high for such case).

On Sun, 12 Jan 2020 at 23:36, Gregor Nanger <gregor@infomedia.si> wrote:
It's called FAS 😊

On Sun, 12 Jan 2020, 19:04 David Villasmil, <david.villasmil.work@gmail.com> wrote:
+1
Regards,

David Villasmil
phone: +34669448337


On Sun, Jan 12, 2020 at 5:01 PM Brian : <brians@iptel.co> wrote:
There were some carries that would do this with high value middle Eastern destinations. Record first x seconds of call then hangup the actual call to the high value destination and play the recording back. The caller would stay connected and be billed. The unscrupulous carrier thus getting high value per minute rates and not paying it on as the call was hung up.


On Sunday, January 12, 2020, Avi Marcus <avi@avimarcus.net> wrote:
> FreeSWITCH Version 1.8.5-6-31281a0bf1~64bit (-6-31281a0bf1 64bit)
> Is anyone having an issue with calls suddenly "restarting" at about 80 seconds? I thought it was 1 carrier on 1 route, but I'm getting reports now across various destinations using different carriers. It's not on every call, just some.
> I've upgraded to FreeSWITCH Version 1.10.2-release-13-f7bdd3845a~64bit (-release-13-f7bdd3845a 64bit) and we'll see if I still get the issue.
>
>
> Thanks,
> -Avi Marcus
> _________________________________________________________________________

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