[asterisk-users] Asterisk 13 on Microsoft Azure Centos 7 instance cannot encode gsm via MixMonitor

[Stefan Viljoen]

Hi Patrick

Wow ok thanks. I was not aware of this.

As far as I can determine the Azure VM we're using was set up on the "stock" Centos 7 option Azure offers. So you're correct, it then won't be an official Centos 7 image.

The one we are running on our bare-metal hosts IS installed from an official Centos 7 ISO burned to DVD... then yum updated fully once the base install is done.

This changes things a bit. THANKS!

I'll try and investigate further. Still wonder what the "RogueWave" or "OpenLogic" repos then have different that -only- GSM encoding doesn't work in Ast 13.22.0.

Thanks for the help.

Kind regards,

-----Original Message-----
From: Patrick Laimbock <patrick at laimbock.com> 
Sent: Friday, 13 September 2019 13:37
To: viljoens at verishare.co.za; asterisk-users at lists.digium.com
Subject: RE: [asterisk-users] Asterisk 13 on Microsoft Azure Centos 7 instance cannot encode gsm via MixMonitor

Hi Stefan,

> Hi all
> 
> I maintain the above - it was set up by an external party with whom relations have now been severed by my employer.
> 
> Quite early after the deployment it became evident that all .gsm audio files produced on this virtual instance at Azure via MixMonitor are corrupt.
[snip]

Is the CentOS 7 installation/image the same across your bare-metal hosts and the one on azure? AFAIK there is still no official CentOS 7 image provided by the CentOS Project on the azure marketplace. Instead it's created by a third party [1]. So there may be differences that could cause issues. On your azure host, check the repo files in /etc/yum.repos.d/. If the mirrorlist/basurl points to openlogic or roguewave than it's a third-party image. IIRC Amazon and GCP have official CentOS 7 images provided by the CentOS Project. Maybe try one of those to see if the issue persists? Alternatively create your own CentOS 7 VM from the official CentOS 7 repositories using kickstart and try that on azure.

Best, Patrick

[1] https://azuremarketplace.microsoft.com/en-us/marketplace/apps/RogueWave.CentOS76?tab=Overview