Making the connection

For ADSL to work over a phone line you need a filter to separate the voice signal to the phone and the data signal to the router. Telefonica supply two filters with their ADSL package.

In England the filters have two ports on them; one for a BT phone plug and one RJ11 for the router/modem. So you plug both phones and routers/modems into a filter.

In Spain it is slightly more confusing because the supplied filters have just one RJ11 port which is the type of connection used for both phones and routers here. The rule is that you connect any phones that you have via a filter. Your router though connects directly to a phone socket i.e. NOT through a filter.

If you get it wrong it won't damage the equipment but it will stop your ADSL connection working properly.

PS You can tell that I'm suffering a little from too much partying last night by the number of times I have had to edit todays postings. I do apologise, it won't happen again - until next time!