[Freeswitch-users] Long increasing audio delay

[Gregor Nanger]

Hi!

We are using Windows on production for years, also with verto.

As I remember, we had similar problems. I think we solved with timer
settings in verto.conf.xml to:

<param name="timer-name" value="none"/>

Try to set it and see if it works.

Best regards, Gregor

V V čet., 5. dec. 2019 ob 20:10 je oseba Jaan Kaja <Jaan.Kaja at enghouse.com>
napisala:

> Hello,
>
>
>
> We are testing webrtc via mod_verto with the verto_communicator demo.
> After some initial troubles with certificates, we have it running from
> Chrome and Firefox. Very nice!
>
>
>
> But, when we leave the connection on for some time, the audio in the
> direction from the browser to a phone becomes increasingly longer. We have
> clocked ~11 seconds, if we leave it on long enough. The audio in the other
> direction has a normal IP telephony delay. We have not found any browser
> dependencies.
>
>
>
> The FreeSWITCH version is 1.10.1 (latest stable release). The phone end
> has been a Blink softphone, or a trunk from a Cisco UCM. The latter
> negotiated mulaw PCM with a 20 ms packet size.
>
>
>
> We have tried different server OS:es:
>
> ·         Windows Server 2019 gives the fastest buildup of delay.
>
> ·         Debian installed in a Windows Substrate for Linux gives a
> slower buildup of delay, but it does continuously increase.
>
> ·         CentOS virtualized in VMWare doesn’t have any buildup of delay,
> and the delay is a normal IP telephony delay.
>
> ·         So, the more Windows, the worse…
>
>
>
> I have a Wireshark trace, and I can get a TLS stream from it. I can
> install a key file to decode the stream, but the configuration wants a
> protocol, and I don’t know what to enter there. There are no dissectors for
> Websocket. So I’m at a bit of a loss, as to how to debug this. I don’t see
> anything obvious in the freeswitch.log.
>
>
>
> Questions:
>
> ·         Has anyone used webrtc on Windows?
>
> ·         Has anyone had the same problem?
>
> ·         What can be done to debug the problem? Turn on some logging?
>
>
>
> We could package a Linux machine to our customers, but as everything else
> is on Windows, it would be nice to make it work.
>
>
>
> Best regards,
>
> Jaan
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-- 
Gregor Nanger

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