BBB 2.3 fresh install: trying to prevent audio collisions and audio ICE error 1004

[MIssac]

Hi everyone,

This message follows this one https://groups.google.com/g/bigbluebutton-setup/c/GsBwLp8CtTo, to make subjects clearer ;-)

Some news, solutions, and remaining problems...

I reinstalled completely Ubuntu 18.04 from scratch and reinstalled BBB 2.3 with the demo API and without Greenlight.

First time I tested the demo API, audio and video went fine.

Then I tried some customized configurations:

- disabling recordings: disableRecordingDefault=true and breakoutRoomsRecord=false in /etc/bigbluebutton/bbb-web.properties

- modifying the welcome message defaultWelcomeMessage (in the same file)

- preventing audio collisions

That's when I began to get ICE error 1004.

To avoid audio collisions, I followed this thread 

https://github.com/bigbluebutton/bigbluebutton/issues/9024

and made modifications that previously worked with my former BBB 2.2 installation:

1/ replace defaultNumDigitsForTelVoice=5 by defaultNumDigitsForTelVoice=9 in /etc/bigbluebutton/bbb-web.properties

2/ replace every occurence of d{5,11} by d{9,11} in /opt/freeswitch/conf/dialplan/default/bbb_conference.xml and /opt/freeswitch/conf/dialplan/default/bbb_echo_test.xml

But these modifications seem to be responsible for the ICE 1004 error.

I do not get the error if I do not make these two changes. This is reproducible.

So how can I avoid audio collisions (we got a few of them with BBB 2.2 server and it was very annoying)? This is really a problem for us.

I have two problems remaining (and I did not even start reinstalling Greenlight!):

- after a few server restarts, I began to get again the error 

Error: Could not connect to the configured hostname/IP address

when I run bbb-conf --restart,

but bbb-conf --check shows no error.

- bbb-conf --debug shows

Original Exception (Redis::CannotConnectError): Error connecting to Redis on 127.0.0.1:6379 (Errno::ECONNREFUSED)

If someone has an idea... ;-) 

Mélanie