said by sonic2000 :

Do you know what a rotary phone is?

said by d_l :

I'm not familiar with rotary phone connection methods (I do remember that their wires were screwed into little tin boxes), but to cover some other aspects of your situation, is that the only phone on the line? I'm just checking to see if there any chance that there is already a POTS splitter out at the NID and a home run leading to a jack expressly for DSL in the place? This situation would not need any of the microfilters.

said by satasi :

well a rotary phone can be either a desktop or wall phone...now what you have is a hardwired wall phone....goes back to the seventies when we hardwired all phone sets......there a wall plates for dsl but you have to convert the backside of the wall phone with a modular backplate........you will need a kit to convert the backplate for a WE 554 phone to modular so you can use a wall plate that has the filter built in. SATASI

said by Mountaineer1 :

If you have the old 4-pronge connector,then you need an adapter. »www.customphones.com/item80509.ctlg