[Asterisk-Users] MoH distorted when a call comes in from PSTN line or Cell Phone

[Zach A]

Hi Everybody,

My MoH is distorted when a call comes in from PSTN line or Cell Phone. I
have SIP phone line and SIP to SIP is good. I don't have any digium
hardware installed, instead I am using ztdummy and apparently it is
working without any problem. What could be causing this distorted sound
and how can I fix it.

Also help on how to make Native MoH work

Thanks