@@JordanU Only for landline calls. The handset from this series of models that supports Bluetooth is the KX-TGA651, these are 653, one of the many you can't purchase separately. You can use the 7621's handsets (KX-TGA410) on this set with all features compatible.
7:24 Most automated systems can detect if it's a human or answering system that picks up based on what it hears, whether it's the word "message", a long message, or a beep. The system that left that message does not appear to be one of those systems, or its detection does not work very well. This is called Answering Machine Detection, or AMD.
