Well, I'm expanding my home network and the adsl modem router supplied by my ISP has just 1 RJ-45 port and 1 usb port (and an RJ-11 for the Internet).

I have zeroed in on TP-Link TD-W8901G having 4 RJ-45 ports, 1 USB port, 1 RJ-11 port and also it is a wireless router. Currently I would be connecting the above modem router to my desktop running Linux and using the same ISP with ADSL.

Considering a future scenario where I may decide to use another way to connect to the Internet like maybe 3G or Cable, etc (with their separate modems) I was wondering if my same modem router (TD-W8901G) could be used as a standalone router for connecting the devices on my home network.

Basically, what I want to know is whether this modem router would be able to share an Internet connection from some other source, other than the one provided through its own RJ-11 (ADSL) source?

If there are similar products (by similar I mean any other Wireless ADSL modem 4-port routers) that can provide the feature that I desire (Internet sharing from some other source) please inform. Price IS a consideration. In India the TD-W8901G is about US$ 43.50

Thanking in advance.