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

[Patrick Laimbock]

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