Routers

Hi All

I have just read  the message regarding the router problem,  I have wanted
to setup a system were I can have people from the outside, dialing into my
server,  I'm not sure what kind of setup I would need as yet,  but I guess I
would need a good router to handle this type of setup,  can anyone suggest a
router for this type of configuration.

I would need the router to be able to answer the phone and give an IP number
to the user that dialed in?

Regards
James