edimax wireless router...but whats the modem? or is it a wireless router/adsl modem combined?, afaik you cant plug a router into a phoneline and get it to work, you gotta have a modem too (or a combined unit like my belkin...router and modem combined that is), be aware that some setups use network cables that will fit into phone sockets, giving the impression that that is what you are supposed to do.
I was once setting a system up for a guy and plugged the phone cable into the network socket, stupid makers had it the same size as the phone connector rather than the standard rj45 plug, I didn't see the modem socket since the pc was already positioned in it`s desk and while everthing else was "onboard" and halfway up the case, the modem was in a PCI slot right at the bottom of the case, hidden behind a wooden reinforcing strut for the desk
so it could be you just have a router with these confusing mini network plugs on the lead that fit a phone line, it may be that you need to plug that lead into a modem and then plug the modem into the phoneline, if you look at the Belkin site you can see what I mean, they sell routers, modems or modem/routers, if you have just a router then you need to add a modem for the net connection, this is just a guess based on you not mentioning a modem in your post, if I'm rambling then just ignore it
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Mentor.
PC1:XP, P4 3ghz, 1gig mem, 3x160gig hd`s, Radeon 9800pro, 6 way sound.
PC2: Linux, AMD 2ghz, 512mb ram, Nvidia GeForce4mx, 16 bit SB.
PC3: XP, laptop, intel 2.6ghz celeron, ATI 9000igp, 256mb