Asterisk cuts out sound after 3 seconds?

Question

Asterisk

Everything worked well, all directions, no problems
Power went out, restored, the server rebooted
Now, when calling through some trunks, and calls to the asterisk internal number are also selective for some reason, dialing goes through, the voice goes in both directions, literally 2-4 seconds, then silence on both sides and the voice does not go at all, I drop it, dial it again, the same garbage.
settings have not been touched for more than a month, the server was purely cut off during the loss of light.
in the logs, it is empty that it is being established, the connection, but the moment the voice disappears, no errors are displayed either.
any ideas?
it seems the system has completely screwed
up now when trying to view the scheduler, it crontab -esays there is no such command
not even in the installed packages, this is just what I noticed, apparently everything was specifically damaged,
p.s. will be a lesson to me, I need to make backups

Answer 1

Really, I have only two questions: where are the backups and where is your uninterruptible power supply?
You need to back up everything /etc immediately.
Then check all filesystems with fsck, preferably along with a surface check.
Check the integrity of all system files using your distribution.
Review the configuration to see possible corruption.