3CX PhoneSystem Media Server need restart to hear again

[Akylle95]

Hi, I have a problem with 3cx self hosted. Randomly, users cannot hear phone (sometimes only external calls, sometimes also internals) until I restart the 3CX PhoneSystem Media Server.
After that, everything works fine again.
We had this issue also with previous version (we actually are on v20) and also when we were on STUN provisioning (actually we have a SBC cluster made with raspberries).

How may I address the issue and resolve it?

Thanks
Kind regards

Andrea

 

[Alphabetic]

What is the system spec of your server?

 

[Akylle95]

AMD Ryzen 7 PRO 1700X
2x SSD SATA 512 GB
4x RAM 16384 MB DDR4

 

[Alphabetic]

What happens if you re-run the firewall test?

 

[Akylle95]

Test del firewall OK: SUCCESSO

PASTEBIN: https://pastebin.com/pDuMstxD

 

[Alphabetic]

What is the endpoint taking the call and what is provisioning method?

 

[Akylle95]

I'm not sure what you mean. I'll try to respond
When it happens, it happens for all the users at the same time. Sometimes the issue prevents also internal calls and sometimes only externals ones (both inbound and outbound). Sometimes one of the user can hear the other, sometimes they can't hear on both sides. It seems to be random.

Actually (this morning, last time, but it happens almost every day) happened while using only IP phones (through SBC now, but the issue was present months ago with STUN provisioning also). We rarely use 3cx apps.