I am new to FreePBX. I have installed it in a DigitalOcean machine and use it in my home.
It works fine, but sometimes I call my office extension and it is occupied when, in reality, it is not.
I guess sometimes the PBX does not recognize the hangup and it keeps the extension busy.
By the moment I am using it only internally with no trunk to PSTN, so it is something in my FreePBX settings or in my Grandstream GXP1405.
I have researched the forum on issues about hangup detection, but most problems seem much more complex than mine. I would be glad if someone could point me in a direction to solve this or at least detect the specific scenario that make it happens.
FreePBX Version = 126.96.36.199
Running Asterisk Version = 11.10.0
Operating System = CentOS release 6.5 (Final)