[asterisk-dev] Asterisk timing without hardware

[Mike Taht]

On 4/5/06, Goldenear <goldenear at free.fr> wrote:

> >>Why could not asterisk use by default timing from (software)
> >>rtc ?
> >>
> >>
> >
> >It does, in 2.6 .
> >
> >
> >
> Really ? I run Asterisk with kernel 2.6 and I have warning messages
> because no zaptel module is present :(



in the case of no zaptel hardware available, modprobe ztdummy first

Secondly, reliable (clocked) rtp timing just moved from asterisk's svn
test-this-branch to svn trunk

You have to enable it by setting internal_timing=yes in
/etc/asterisk/asterisk.conf in the [options] area.

In my testing thus far (not from trunk, but test-this-branch), it works
beautifully.

I have seen VAD work well for the first time between asterisk and a
spa-3000, and in high packet loss situations (think wireless) where losing
the rtp packet on one side used to lead to packets not being sent from the
other side, which could get kind of pathological pre internal_timing - it's
marvelous.

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--
Mike Taht
PostCards From the Bleeding Edge
http://the-edge.blogspot.com
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