Coming from every version of the iphone since it's inception, switching over to Verizon iPhone has been great except for 1 major glitch I discovered. While I was in a current call, I received another call and was able to hold & answer just like on the AT&T iPhone. The screen said "multiple calls" and I got an option to "swap" between the 2 active calls, however the "merge" option was grayed out (unavailable) so i couldn't conference the two active calls. When i hung up with one of the calls, i did not get the option to go back to the other call -- when i ended the one call, it ended both calls. i called one of the Apple stores and they were baffled. i tried a test on my wife's Verizon iPhone as well, and the same thing happened. Anyone else have this problem?