Allen Tel GB221F Plug Adapter |
(Model # GB221F) Note: Picture may not represent the actual product. We are continuously working on improving our website and reserve the right to change specifications, availability, and pricing without prior notice. Same as GB221 with the exception of special jacks. Arranged to cut off the receiver of a headset if the headset transmitter is disconnected by partially withdrawing the plug . Standardized in PT&T G.A.L.E. letter 1313 9/26/69, and complies with the CPUC order regarding monitoring.
To minimize transmission impairment, it is recommended that this unit be used with headsets and handsets equipped with transmitter cutout or push-to-talk switches.
Features;
- Transmitter cutout
- Push to talk switches
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