Hi there ,
I am having this issue with a second line connected to a Digium Card with the last version of FreePBX
I had on line connected and working perfect , If some one called this number it will ring a Ring Group , all going really perfect , if the line is busy it will go to the voice mail for the main extension 1001
Add a second line and its configured with the same hardware group. , but if someone is calling the main number and its busy it wont jump to the second line even with the jump line service from the service provider that it has to jump to the second number when its busy , I cant get the first number return a busy signal , or it go to the voice mail or it drops the call
Any Ideas ?