<div dir="ltr"><div>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.</div>
<div><br></div><div>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.</div>
<div><br></div><div>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.</div>
<div><br></div><div> Thanks,</div><div> Bob</div><div><br></div></div>