Why can't you hear the interlocutor in the absence of a tunnel between offices?

Question

linux

Good day! Tunnels have been built between the three offices and the data center in which the asterisk is located. If for some reason the tunnel between offices 1 and 2 collapses, then when you call between them, the interlocutors do not hear each other, although the tunnel to the data center works fine. Why might this happen?

Answer 1

For simple log parsing, it's best not to call bash, but to use awk/gawk.
https://codeby.net/analiz-log-fajlov-apache/
https://proft.me/2011/05/8/awk-parsing-fajlov-po-s...
Well, in Google, according to awk gawk
Well, the Talmud from Aibime https://www.ibm.com/developerworks/ru/library/l-aw...

Answer 2

My assumption is that your voice traffic is now going directly, bypassing Asterisk. In order for voice traffic to always pass through the server, in the global section of sip.conf you need to add
directmedia=no