[Freeswitch-users] "Shadow calls" - duplicate calls executing in parallel

[Sam van Herwaarden]

I see. I've seen this happening both on systems using SIP and systems using
PRI (no RTC involved), so it might be something else. Unfortunately I'm not
in a position to upgrade some of the systems (we don't run all of them) so
I guess I'll just have to live with this.

Best,
Sam

On Sat, Feb 27, 2021 at 3:36 AM David P <davidswalkabout at gmail.com> wrote:

> I think the last time we experienced that was with 10.4 (we're on 10.5
> now).
>
> It happened infrequently as you note. I assumed it was an error in the way
> our WebRTC app invoked verto. (I didn't have any browser console log to
> confirm that, though.)
>
> On Sat, 27 Feb 2021, 9:07 am , <
> freeswitch-users-request at lists.freeswitch.org> wrote:
>
>>
>>
>> ---------- Forwarded message ----------
>> From: Sam van Herwaarden <svanherwaarden at precisionag.org>
>>
>> Hi all,
>>
>> I was just wondering if others have experienced this: on a few of the
>> FreeSWITCH systems I've interacted with, I've observed situations where
>> incoming phone calls seem to be duplicated. So there seem to be two call
>> processes for the same phone number, also both receiving things like DTMF
>> events. The timestamps of events tend to be very close (sub-second) but not
>> necessarily identical.
>>
>> It's not very common, less than 1 per 1000 calls has this happening. It
>> does tend to throw off some of our tooling (both in call handling and
>> analysis). Curious to know if there could be an obvious cause/easy fix.
>>
>> Kind regards,
>> Sam
>>
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