Freepbx and Grandstream Gateway

Hello Guys

I have the Asterisk 11 Running and I am having an issue with the Grandstream gateway installation.
The issue is when a caller dials in and the call is sent to voicemail,if the call is ended without
leaving a message then the line is not released.I have to manually hangup the line from the
gateway interface.

I have also opened a ticket on the Grandstream forum and I have uploded a sample audio of
what can he heard on the voicemail message itself.

Hi Kimmy,

Please refer to your Grandstream support ticket. Further information will be available via that thread.

Thank you,