- Manufacturer: Western Electric
- Model: 2515BM
- Manufacture date: June 19, 1971
- Dial type: type: 35Y3D, Date: 6-1979
- Color: Beige (60)
- BSP for this phone
2 line desk set with hold feature
Closeup of the internal line switch. If the switch is pressed down a set of contacts is engaged which can be wired for signaling another station. 631C is the part number of this switch.
Closeup of the exclusion switch mechanism
Underside of the housing. The white plunger on the left interfaces with the exclusion mechanism seen above. On this phone, when the white plunger is pulled up, the line which is not selected is put on hold, enabling the user to switch lines without loosing the call.
Network manufactured: June 19, 1979
Circuit board under dial