I have three PTSN lines that come into our PBX. They are supposed to each one call forward busy in turn. Is there any reason we should be getting call waiting beeps on extensions, based on settings in FreePBX? People are calling in, and instead of the calls doing a busy forward, they hear the call as ringing endlessly on their end, but they don’t ring extensions inside.
We have had issues with the phone company disabling call waiting on lines before. Is this the only explanation, or is there a configuration issue in play?