Lg VX4400

I just bought a LG vx4400 for use on the verizon network under the impression that i could use it on their circut switched network. I got it okey rigged with drivers for a vx1. And i am able to dial out to my isp (sbcglobal) fine. but when i try and use the verizon isp it keeps getting me a message saying that its unable to connect. I am dialing #777 from it with the default username and pass of qnc. is anyone else having this problem, and if they are what have they done for a solution.

Thanks alot
-Eric