Add Touch Tone Capability to PABX Consoles
The HD-1 Handset Dialer is a universal keypad Touch Tone generator capable of providing DTMF signaling.

The HD-1 permits access via DTMF signaling to beepers, voice mail and banking services from phone system consoles or other equipment which cannot provide Touch Tones. The HD-1 is easily installed in series with modular handsets and headsets or interfaces directly to Tip and Ring.