I recently upgraded an asterisk box running asterisk 1.6, DAHDI 2.3 and libpri 1.4.10 to asterisk 11.17, DAHDI 188.8.131.52 and lipri 1.4.15 .
Since then after a while the audio in the conferences become choppy, but all the other calls are fone. The problem seemed to go away after a reboot but a few days later it happened again.
I tested with Meetme of ConfBridge and the problem can be noticed using both, which made me think of a timing problem, but at the same time res_timing_dahdi is in use since the 1.6 version and never had this problem.
Does anyone have any idea of what can be happening?
CentOS 5.5 32 bits with PAE kernel enabled
Asterisk 1.6 => 11.17
DAHDI 184.108.40.206 => 220.127.116.11
libpri 1.4.10 => 1.4.15