Hi

There is a tool that BT engineers have - they call it an amplifier -
that amplifies the sound from cables that they run line tests through.
If there are whole bunch of cables, it enables them to isolate which
ones belong to what number (by running a test on that number causing it
to oscillate).

Does anyone know what these are actually called? Any BT/ex-BT engineers
here?


Thanks in advance.

i'm a phone engineer and its called ......................................yes wait for it ......................................















an AMPLIFER.




ps, why do you want to know?

Tone generator and amplifier?

Found it !

http://cpc.farnell.com/jsp/endecaSea...sp?SKU=IN04456

Had a few issues where BT have had to be called in recently, and thought the device they used would be really useful for sorting our jungle of a patch panel!

Oscillator and Amplifier, still have mine

Is that a pair of the old metal cased ones in the canvas bag?