Telephone line guardian v1 |
Turns alarm on if phone line is in use. |
2.91 |
990 |
Telephone line guardian v2 |
Turns on alarm if phone line is in use. |
2.92 |
812 |
Telephone line recorder v1 |
A device that turns-on voice recorder automatically and taps to the phone line. |
2.90 |
3,342 |
Telephone line recorder v2 |
A device that turns-on voice recorder automatically and taps to the phone line. |
2.88 |
2,369 |
Telephone line recorder v3 |
A device that turns on voice recorder automatically and records phone conversation. |
2.89 |
1,662 |
Telephone line recorder v4 |
A device that turns-on voice recorder automatically and taps to the phone line. |
2.93 |
1,903 |
Telephone line status |
Another device for telephone line status indication. |
2.92 |
1,196 |
Telephone metering signal counter |
Counts 16kHz signals on phone line. |
2.89 |
2,961 |
Telephone ring counter |
Telephone ring counter device. |
2.86 |
1,801 |
Telephone ringer |
Audio and visual telephone ringer. |
2.90 |
1,494 |
UPS for cordless phones |
Backup power supply for cordless phones base station. |
2.92 |
1,696 |