Public Switch Telephone Network Tester

The Testphone 295B is a test telephone designed for use on Public Switched Telephone Networks (PSTN). It is designed for use on both Dual-tone Multi-frequency (DTMF - tone dialling) and Loop Disconnect (LD - pulse dialling) lines. Fitted with an integral ADSL filter, the telephone will not cause interference when connected to ADSL/Broadband lines in either `on hook` or `off hook` mode.

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Topics

Network Testers
Telephone
Network
Testers
Telephone Line Test
Telephone Line
Loop a Line
Test Hooks
Tone Test
Line