2nd router DSL thru a different phone jack?

Hi everyone, I just moved with some roomates who have ATT dsl internet, the 2wire modem/router is at one of their rooms. I used to be an ATT dsl customer and have a spare 2wire router with me. I am sharing their internet acct. for wireless internet, but I have a Voip phone that I need to connect directly into a router.

How can I connect my spare router in my room, using the same internet connection so that I can use it with my voip phone? I have a phone jack that I can use here, and they will not allow their router to be in my room so that I can plug it to my phone (can't understand why). Are there any other suggestions that you may have? Thanks!

the 2wire model is 2701HG-B which I believe is the standard ATT dsl modem/router. My voip phone connects directly to the router through a WAN cable. It does have a usb port but that is used for data storage and transfer.

what I would like to do is to share the internet connection between the 2 routers without having to physically connect them, just plugging my router into another phone jack in the same household (in my room) and then plugging my voip phone in there.

Wirelessly, guaranteed to work. Wired, not sure since I don't have exp in that. Here's how I do it:

Reset 2wire by sticking a paperclip in reset hole in the back for 30 secs, hook #1 port to your pc with a network cable.

On Windows, Start > Network Connections > and right click on Local Area Connection and go to Properties

Double-click on Internet Protocol (TCP/IP). Select auto or use the following IP address:

192.168.1.101
255.255.255.0
192.168.1.254

Wait a min or restart pc, in web browser, go to

http://192.168.1.254

If that doesn't load, click start, run, cmd, type:

ipconfig

Copy & paste the gateway address to web browser.

Click home network, adv settings, configure manually:

192.168.1.110
255.255.255.0

Clear both enable boxes for public & bridge, save. Go to firewall tab, check all in/out-bound control, save, go back, clear all attack detection, save.

Go to broadband link, adv settings, DSL = AUTO, ATM CI VPI = 0, VCI = 35, ATM ENcapsulation = bridged LLC, ATM PVC = disabled, save.

Unhook your pc from router, hook it back to his router. Any port from his & port #1 in yours.

That's it. However, your roommate's router may have a different set of #'s. They're in the status pop-up in networking. Or on his pc, you can start, run, cmd

ifconfig

That'll tell you his IP, netmask & gateway. You use the same except the IP on your router. i.e.

192.168.0.100
255.255.255.0
192.168.0.1

In this case, you use:

192.168.0.101
255.255.255.0
192.168.0.1

instead of my #'s. Once you do this on your router, your router becomes an access point. You can set up wireless and use any pc/device to connect to your router, then his, and finally the ISP.