I have a freeswitch server where it connects the user to a voip provider so it terminates to a mobile phone.  There are some intermittent scenarios that are happening.  

1.  If A calls B , B answers after some time A ends the calls. Sometimes it automatically redials and calls B several tiimes like 8 times in my test.

2.  If A calls B, B declines auto redialing also happens.

Is there a configuration in freeswitch to avoid this?