i want to buy a bluetooth headset. i have never had one and i don't really know what to look for. one thing i noticed though is Plantronics and Jawbone have to use the makers' service to access features such as speech to text or reading email. is it usual for headsets to use these services to access additional features? i have always assumed that features like that are available through Android. i really like the Plantronics but their basic service, although free for one year, is an extra $25 per year. i just wanted to add that i'm mainly after a caller ID that will say who is calling if that feature is available.