Changing modems?

[deermit]

Hello,

I’m running an Actiontec GT704-WG modem for my DSL service and I’m having a lot of trouble staying connected to the Internet. I have access to a “2wire modem” from AT&T that is not being used. My question is, can I hook this modem up and use it on Verizon's network and if so how do I do it? I’ve always used dial-up in the past and just now starting to learn about the DSL world! Thanks