Don't have TV, want to use 3rd party router and modem

[wireless]

I have the Actiontec T3200M router/modem. I am not sure what components are included in this thing, as there is a coaxial cable, and the DSL lines going into the back. Is this a DSL or cable modem combined with switch/router? If I want to use a 3rd party modem, would it be possible? Or if I cannot use a 3rd party modem, then could I use my own router in conjunction with the actiontec T3200M, also considering that I do not have any TV service.


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