My master socket appears to be a Type 5 SSFP Infinity. The extension cable then goes from the back of the box and then outside to my backroom where the extension box and the router etc. are located.

The master socket now has the phone connected via the bottom connector leaving the top one free.

What happens if I try to use the top connector? Can I connect another router for instance, there? Will it just cut out the extension? Will the socket explode and burn my house down? Or none of those.

This (I hope) is a picture of my socket (bottom one)

http://bt.custhelp.com/app/answers/d...-have-i-got%3F

Thanks

You can only connect a single router to a single broadband enabled phone line. The only way to use more than one router on a single broadband connection is to have Router 1 plugged into the phone line and then plug a LAN or WAN ethernet port on Router 2 to a LAN port on Router 1.

If you were to try plugging a second router into that port it won't blow up or sell your children into slavery or anything like that it will simply not work. Probably neither router will connect or at best one router will work and the other won't.

Thanks Chris, another great idea of mine shot down in flames.

To be honest I didn't think it had much going for it. Interesting plan about using the phone line though but I'm in enough trouble with the missus after cancelling our sky subscription - to mess about with the phone would be more than my life's worth.

The phone line is the broadband line and the broadband line is the phone line. They are one and the same thing.

Both router and phone are connected to exactly the same pair of wires going back to the exchange. Doesn't matter if that is via phone socket like your master with separate ports for router and phone or a filter that plugs into a "normal" phone socket.

That is what I mean by plugging the router into the phone line. Not that you plug the router into the socket that the phone is currently plugged into. Which wouldn't work anyway as the phone socket is filtered to remove the broadband signals .

http://www.fixmyphoneline.co.uk/blog...-master-socket