So my old plantronics headset is going to crap and wanted a new phone with built in bluetooth so I can use any headset. The newer IP-PT do have bluetooth like the KX-HDV430 but I would have to install it on my current KX-TDA50. Currently not interested in using it for VoIP but maybe later. So:
1. Is the HDV430 phone compatible with my system if I purchase the IP-EXT card only?
2. Will the phone handle my regular CO lines and act like my current PT phones?
3. Can I later integrate my google voice VOIP (which is a separate box that connects to a CO line) down the road with a SIP gateway card?
4. Can the HDV430 view any IP camera is it just the Panny cameras?

Thanks for the advice

Richard