Migration to freepbx 2.8 and pinsets distorted sound problem

Good Morning

I have upgrade my freepbx to 2.8.0.4 when dail number the sound messenge pinsets that say enter de code is distorted.

I replace the sound agent-pass.gsm but the problem is the same, I unistall the module Pinsets and reinstall but is the same.

thank for you help.