[Asterisk-Users] Zap FXO channel locked up with steady static (white noise)

[Rich Adamson]

> I have a TMD40B and a TDM04B in my test evironment box, it is currently
> running CVS-HEAD-10/30/04 on redhat 9. I am making a lot of changes to
> the .conf files and reloading often.
> 
> Occaisionally I get one of my Zap trunks in a state where * thinks it is
> idle, but every time a call is bridged to it you hear a hiss (white
> noise, steady) and nothing will succeed. When you call the number
> associted with the channel it rings, but * does not acknowledge the
> ring. Unplugging the line from the card has no effect, and the line
> status appears to also be idle.
> 
> The only thing I have found that will reset it is a shut down and power
> off of the box. Any ideas?

Several of us have seen the exact same thing on the fxo ports since the
card came out. Some have had luck stopping asterisk, unloading the 
drivers, reload, etc. Not sure if a bug report has ever been opened.