[Freeswitch-users] transcoding GSM with a high ptime

[Dan Lane]

On Fri, Mar 25, 2011 at 8:39 PM, Anthony Minessale
<anthony.minessale at gmail.com> wrote:
> other formats also with 120 ms ptime?

Namely PCMA / PCMU. We've noticed that G722 is limited to 60ms and I
don't seem to be able to get iLBC to work above 40ms.

> You do run the risk of losing a significant amount of audio if you
> drop even 1 120ms packet.
> The other end would be starved for 5 intervals.

Yes, but we're dealing with mobile endpoints behind very jittery connections.

> you could try rtp_timer_name=none on the 120ms leg

That fixed it... rtp_timer_name doesn't appear to be documented very
well on the wiki so are there any negative side-effects to having this
set to none? (I'll update the wiki with anything I learn as I'm doing
this).

Thanks :)