This question is related to an old zaptel version (1.2.14) that I’m using for specific reasons on one of the machines in combination with Sangoma cards. The version of zaptel/asterisk/libpri cannot be changed :-). Even though this is an old version, I still hope somebody will be kind enough to help me a bit.
The following problem came out of the blue: whenever I stop Sangoma drivers (command “wanpipe stop”) the /dev/zap/channel /dev/zap/pseudo /dev/zap/timer and /dev/zap/transcode devices disappear. Executing command “ls /dev/zap” returns “ctl” only.
Starting the drivers and executing “ztcfg -vvv” doesn’t help. Asterisk will not start up again unless machine is rebooted. Asterisk will complain with “/dev/zap/channel: No such file or directory” during zaptel load.
Everything boots fine though if I restart the whole computer. So I am guessing something trivial must be wrong. UDEV settings, zapata.conf, zaptel.conf are correct.
P.s: I have already contacted Sangoma support, but so far we didn’t find any solution yet.