Samsung Convoy 2

Thanks Rich, I knew that. PTT is basically a walkie talkie, which is why people always say "OVER" when they have finished talking and are ready for the other person to talk. I have the first version of the CONVOY, which is sitting in my closet. I could not use it because pieces of the conversations were always getting chopped off, since it is definitely Half Duplex. Dollars to donuts the Convoy 2 is also Half Duplex. Too bad, because otherwise is a nice phone.