[Freeswitch-dev] New "mod_dahdi_timer" - does the community want this?
mike at jerris.com
Mon Oct 21 19:15:04 MSD 2013
Sure, except obviously we shouldn't hardcode the change to mod_conference, we should make the timer an option in mod_conference config. Toss it on out in jira.
On Oct 18, 2013, at 10:32 AM, Bob Hartwig <bobjects at gmail.com> wrote:
> I ran across a problem with a Dahdi-based FreeTDM system a few weeks ago. Because the timer for mod_conference was not synchronized to the T1 clock source, there was significant periodic on-conference noise. The problem was not that the "soft" timer was inaccurate; on the contrary, it was a very accurate 1 mS timer in a system that had a pretty inaccurate T1 clock coming in.
> My solution was to create a new "mod_dahdi_timer", which derives the ~1 mS timer from 8 ticks of the 8 kHz /dev/dahdi/timer device. Then a one-line change to mod_conference.c to change "soft" to "dahdi", and the conference sounds perfectly clean.
> Is this something that the FS community wants? It's pretty specific - probably only of interest to users of Dahdi-based FreeTDM systems, but for them, it may be very useful. If so, how do I go about contributing it? I've never contributed any source to the FS community before.
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