[Asterisk-Users] FXO/FXS cpu spikes, data loss and ztclock.

[qrss]

>Probably you are only looking for results of FXO cards, but maybe it's
>usefull:

Any results that folks can supply are useful. Thankyou for giving ztclock
a try. This information is certainly helpful.

>483328 samples in 60.416004 sec. (483329 sample intervals) 99.999794%
>483328 samples in 60.416000 sec. (483328 sample intervals) 100.000000%
>483328 samples in 60.416004 sec. (483329 sample intervals) 99.999794%
>Estimate 8 frame slips every 483.328003 seconds.

I assume that your system is clocking from the BRI rather than from the
TDM card. Is that correct?  It looks to me like you have a perfect clock
source that is 100% accurate. I would guess that the slight deviation of 4
microseconds in two of the results is likely accounted for as a percentage
of error in the test itself. In reality, I'm sure that you are not seeing
any slips at all.  I'll be compiling any results that I receive in order
to try to improve the accuracy of the test.

>
>No CPU spikes afaics.
>
>Card:
>Module 0: Installed -- AUTO FXS/DPO
>Module 1: Installed -- AUTO FXS/DPO
>Module 2: Installed -- AUTO FXS/DPO
>Module 3: Installed -- AUTO FXS/DPO
>Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules)

>I run a fax on it, this works. But this is FXS. I have ISDN lines
>outgoing with the junghanns quadBRI.

Do you have fax machines connected to the FXS ports, or are you running
something like spandsp?