Having issues listening to .WAV voicemail emails on 3cx v20

[Ben Bruning]

3CX Version: Version 20.0 Update 6 (Build 724 Release)

Recently- We've been having some issues with clients getting sent .wav files that are unplayable via email.

I've attempted to move these emails and .wav files to known good PCs with several different softwares that should be able to play .wav files, I've also redelivered these emails via our email gateways to no success.

We've been able to successfully fix this issue with restarts on the 3CX server- but are looking for a better solution for this company- as we do not want the client losing voicemail (restarting the server does not fix the previously sent .wav files).

Is anyone aware of a service running on self hosted installs that is responsible for this? It should be noted, when informed of this issue, I have remoted into the self hosted server and confirm all 3CX Services are running as expected.

We could setup a RMM script to preform a nightly reboot on this machine- but I am trying to understand the root of WHY this might be happening- It certainly appears to be a rare phenomena, as its not happening on any of our other v20 3CX setups.

Any suggestions are highly appreciated-

 

[KyriacosS_3CX]

Hi,

The problematic WAV files, do they have the same issue on the device, or only when sent via email? If you open one with a hex/text editor, does it seem to be a normal WAV file?

 

[Ben Bruning]

Hi,

The problematic WAV files, do they have the same issue on the device, or only when sent via email? If you open one with a hex/text editor, does it seem to be a normal WAV file?

Thanks for your teams quick reply-

Shortly after this post- we actually received an RMM alert about the available space on the C drive of the server.

We found an installation log file that had grown out of control on size for one of our backup softwares that cause the C drive to completely fill.

We removed this file & restarted the 3cx self hosted server and have not heard of end users having issues since.

Somehow I missed checking into this- I guess it just never occured to me that the server was simply out of space to record the .WAV files!

 

[KyriacosS_3CX]

Glad to hear it's resolved, we all start thinking of the most complexes scenarios when often it can be the "simplest".

 

[mmamakas]

Having this issue now. Rebooting does in fact resolve it. In my case, we have plenty of drive space.

 

[SteveITS]

Are the files 0 bytes or some random size?

re: OP's issue, one can enable a "disk usage exceeds __%" alert in 3CX.

 

[mmamakas]

They are varying sized WAV files. They actually open, but playback silently for x duration. In other words, a caller leaves a 30 second voice mail. The wav file attached to the email, or in the app, plays back for 30 seconds in silence. Interestingly, a new user i created to test-- had no issue. Existing users had the issue. A reboot resolved it temporarily.

 

[Mr. Sea]

Actually we have a client that just reported same thing a few days ago, running the linux distro.

 

[mmamakas]

I think we figured it out. Spammers are leaving silent voicemails. Nothing wrong with 3cx.