Asterisk Music on Hold MOH Sound Choppy in and out using Pennytel

When we put a call on hold using out asterisk server the Music on hold would chop in and out.

We found this choppiness only occurred using Pennytel and Engin, other VOIP providers the MOH was smooth.

Try this:

  • Make sure you’ve compiled zaptel and have ztdummy loaded.
  • Login to the server. If connecting from a windows system you can use putty ssh client or similar
  • login with the root username and password then execute the following

cd /etc/asterisk
vi asterisk.conf

  • Under the [options] section remove the ; comment from

transmit_silence_during_record = yes
internal_timing = yes

  • :wq