[asterisk-users] Suddenly the voice become like robot (cutting), like sick man

[bilal ghayyad]

Hi All;

My asterisk version is 1.4.19.2 and it contains one digium card of 2 fxs and 2 fxo ports, it was working great for more than one month without any problem.

Suddenly, any call will be done, then voice becoming like robot (or sick man), it slow and cutting. 

I restarted the machine, but it is the same !!!

I checked the RAM which is 1 GB and I found a lot of space.

Any advise what could be the problem?
Regards
Bilal