Technical details
| Input sensitivity |
150 mV |
| Phonebook capacity |
100 entries |
| Number of outgoing messages (OGM) |
20 |
| Recording range of each call |
2 min |
Tiptel 540 SD. Display type: LCD. Power requirements: 230V, 50Hz. Dimensions (WxDxH): 220 x 50 x 190 mm, Weight: 270 g