Telta-217 Telephone Apparatus for Effective Communication with ATC Systems

The Telta-217 telephone set is designed to work in conjunction with the
automatic telephone exchanges (ATS).
The apparatus is pre-set pulse dialling method.
Functional capabilities of the apparatus
-Reception of acoustic tone call signal with the possibility of smooth adjustment of the volume level;
-Operative switching of dialling method;
-Storage of the last dialled number and its redial;
-Pre-setting of pulse or frequency dialling method;
-Short-term line break with the button "R1" (80 ms) or "R2" (150 ms) for calling additional types of service (ADS).