Larger Systems Available many other components comprise this system
| Make | Bell Systems |
|---|---|
| Manufacturer | Bell System (Telephones) Limited |
| Model code | 904 |
| Series | Bell System 900 Series |
| Type of Kit/ System | Audio Only |
| Mount Type | Surface Mount |
| No of Entrances | 1 entrances |
| Door Release Type | Rim Release |
| No of Call Buttons on Panel | 4 call buttons |
| No of Handsets/ Phones | 4 handsets |
| Panel Material | Alumunium |
| Additional info | Larger Systems Available many other components comprise this system |