[Asterisk-Dev] Problems with ring debounce on TDM400P FXO channel

[Rich Adamson]

I spent a fair amount of time about three or four weeks ago trying the
different options using the Silicon Labs tech sheet. I was attempting
to verify whether the different settings had any impact on echo, and
by simply listening (no instrumentation) I could not detect any impact.
(3 active pstn lines from two central offices, all with the same
identical issues.)

I'm waiting on a 965DST transmission test set to help with the process,
but it had to be sent to the manufacturer for repairs. Hopefully within
the next week or so it should be here and I can spend some time trying
to isolate the issues.

I had not attempted to judge the impact of the ring debounce issue.

Rich

------------------------
> Has anyone decided to experiment on this problem by varying the line's
> signal impedance level?  
> 
> This sounds more like an impedance problem.
> 
> Kris
> 
> -----Original Message-----
> On 10-Jun-04, at 10:24 PM, Ron Frederick wrote:
> 
> > I also have some other devices directly connected to that same phone 
> > line,
> > in parallel with the TDM11B. I immediately noticed a problem in this
> > configuration when one of the other devices went back on-hook after 
> > using
> > the line. The wcfxs driver for the card recognized this as a "ring" 
> > event.
> 
> I have the exact same problem, both at home, and at my customer's site.
> 
> > I'm not sure if it would be safe to roll this change into the main 
> > tree, or
> > if the longer debounce time might cause problems in some other cases.
> 
> I would also like to hear some opinions on this.
> 
> Thanks,
> ..........................................
> Ryan Courtnage
> Coalescent Systems Inc
> 403.244.8089
> www.voxbox.ca