Yes. You just need to know what to enter in your kppp configuration, assuming that's the dialer you're using.
That part I get O-P, but dialups like juno/earthlink/netzero use their own software and have a banner above your browser.
Back when I had comcast I had XP on the puter, had to install their software to get connected then (normally) I took it off and reconfigured the connection in XP.
I have Comcast now, and don't have a Windows installation on any computer, yet have no problems setting up or connecting. Those "special" applications just set up the hardware using standard settings. All of those settings can be set manually from a Linux box.
When I had dial-up connections, back in the days when the likes of Alta-Vista, K-Mart, NetZero, Juno and other companies were offering free dial up access, with add banners, I had up to a dozen accounts I could access, as backup to a paid account, and never used their software, as it was Windows only.
I haven't set up a dial-up connection since I've had broadband cable, and don't even have a usable modem anymore, as the controller modem I have is an internal ISA slot card. I had an external serial modem but gave that to my son when he moved to an area that only had dial-up available. I do know I never had a problem setting up any dial-up connection on any Linux box, or needed any special proprietary application to do so. I just don't remember the specific details, beyond setting up kppp or wvdial for the actual dialing and auto login.
I do recall my ex-wife having an EarthLink connection, and my being able to dial into her account, from my computer, when she was having problems connecting from her own computer. Unless things have changed drastically, it shouldn't be all that hard.