Otherwise just connect the red-wire and the green-wire (that is called "tip" and "ring" for the two end parts of an old-style jack/plug for a switchboard ) to your wall outlet.
Depending on the age and type of the dial mechanism.. ( rotary or tone) you may need to reverse those two wires if the tone buttons don't work.
Otherwise that's all there is to it usually.
Otherwise that's all there is to it usually.
This site has some telephone schematics, including a coin box, as they call them. I worked for Ma Bell for five years, I might can help you decode the schematic. You might have to do some rewiring. My work was mostly with carrier, I worked mostly on Co-axial and microwave usually with 600 circuits at a time, so my knowlege of two wire circuits is more of less limited.
Lewis L.
www.telephonecollectors.org/library/weco/weco.htm