TECNOLOGY
The  TT3 has been built with components and circuitry especially chosen to achieve the best audio quality referred to the limited possibilities the phone line can give. We wanted to obtain a strong and functional unit, easy to use by everybody.

CONNECTION TO THE TELEPHONE LINE
The existing telephone equipment remains unchanged. The  TT3 is connected to any points of the telephone lines, for example to one of the plug of the telephone or to a derivation box in the multiple equipment or directly to the arrival wire of the telephone lines. No tampering or changes to the existing telephone equipment or to micro-telephones are required, and no application of inductive caption coils or similar devices.

CONNECTION TO AUDIO EQUIPMENTS
The signal coming from the telephone lines goes out from the TT3 in suitable way to be connected to a microphone input of a mixer. The regulation of the input/output level is possible thanks to a potentiometer situated on the posterior panel. The connection to an output ( tape or master) of a mixer is possible thanks to the input of the TT3 for the audio signals which must be sent on the telephone lines.

BIDIRECTIONAL CONVERSATION
It is very important to notice that with our TT3 extra headphones and microphones are completely eliminated during a conversation. In fact the signal coming from the telephone lines may be listened through the mixer and each headphone which is connected to it. Even all that is said through the microphones, tape recorders or other apparatus connected to the mixer is sent on the telephone lines and listened through the telephone set. Obviously if the studio has an acoustic equipment is not necessary to use the headphone.

CONFERENCE
When the two telephone lines are on line, these are also connected to each other. In this way it is possible to make a conference with the speaker in the studio and the ones on the two telephone lines.

ANSWER
Normally you may answer at the telephone calls using one of the existing telephone sets, but it is also possible to use an added one. This makes possible the filtering of the telephone calls in order to choose the ones which may be sent on air. 

QUICK ANSWER
When it is not possible the filtering, cause the rhythm of transmission, you may answer directly from the TT3, putting immediately on air the call to which the speaker is answering.

SIGNAL QUALITY
Suitable circuits allow a very good signal quality and any noise is eliminated thanks to a specified transformer.