for combined and LCK systems, inc buzzer mute push-button (privacy) & LED indicator
| Make | Bell Systems |
|---|---|
| Manufacturer | Bell System (Telephones) Limited |
| Model code | 500X |
| No of Call Buttons on Panel | 2 call buttons |
| No of Handsets/ Phones | 1 handsets |
| Telephone Mount Type | Wall Mounted |
| Additional info | for combined and LCK systems, inc buzzer mute push-button (privacy) & LED indicator |