[Asterisk-Users] TDM card periodic buzz

[Andrew Kohlsmith]

On April 13, 2005 03:42 pm, Trent Tuggle wrote:
> The symptom is a loud, brief buzz, almost exactly every 6 seconds, on
> the dot.  It is only audible to remote parties, when I use an analog
> phone connected to my Digium TDM card.  All other audio through my
> Asterisk box is fine, including SIP phones, music on hold, voicemail,
> etc.  But when the TDM400P is bridged to the PSTN through my IAX2
> provider, I get this repeating buzz!

With it occurring, log in and type zttest and let it run for a minute and tell 
us the accuracy min/max/avg.

-A.