Intermittent Issue: Strong Static/Crackling Noise Instead of Audio (One-Way)

General Help
1

Hello everyone,

I’ve been experiencing a sporadic issue with FreePBX for quite some time now, both during internal and external calls. Occasionally, the other party becomes completely inaudible, and instead, I hear only very loud static or crackling noise. However, the other party can still hear me without any problems.

There is no clear pattern to when this happens. Oddly enough, if I immediately call the same participant again just a few seconds later, everything works fine.

System details:

  • FreePBX Version: 16.0.40.11
  • Asterisk Version: 20.5.2

Has anyone encountered a similar issue, or does anyone have suggestions on what might be causing this?

Thanks in advance for any help!

2

Hi @Sarmingsteiner
Is your PBX with TDM card or any analog device attached on it?
You are hearing crack only one phone ? or every phone has same crack ?