Audio Playback Timing Off

I have a problem with my audio playback that it is sometimes playing fast. This happens for music on hold, ivr recordings, and outbound messages as well. These are voip only lines, so if I understand correctly its not a ZAP timing issue, but I could be wrong. Can someone advise.


Try running zttest from the command line and see if it is 99.9% - if it’s lower, you’ve got a zaptel problem.

Any other suggestions?