This is an early wall telephone from Western Electric and was produced in 40's and 50's mostly - it was the main wall telephone that WECo made until the 354 was produced in the 50's. This telephone is electronically the same as a WE302, and uses the same components. It's a telephone in 2-parts, and comes with a ringer box that plugs right into any modular plug. You mount the mounting bracket to any surface that will take screws (like a frame around a door, or studs in the wall, or the side of a desk). Loud ring - it's ideal for places where there is limited wall space, or where you just want a very cool, fully functional telephone.