Originally Posted By: Paul810

Personally, I've got GM's On-Star in my truck, which works on the same network as cell phones, but uses a significantly more powerful transmitter (3 watts). Typically I can get a signal with that when I can't get one with my cell phone. The downside though, is that it's built into my vehicle.


I've a question about the ON-star system. When it first came out it worked on analog cellular technology. When the analog system was killed off the older vehicles with analog on-star lost their connectivity. The new system is digital but what type? GSM, CDMA, TDMA, frequencies? Are these available everywhere?