Specifications

3.7.16 Headset Interface
You can program LCD speakerphones equipped with the optional headset jack to use a headset as well as
the handset or speakerphone.
NOTE: The system delivers subdued off-hook voice announcements (SOHVA) to the headset.
Because a headset exhibits a coupling effect between the earpiece and microphone, it may
allow the outside party to hear a SOHVA message. You should inform the user of this
possibility.
Headset Operation As A Class Of service
Description: When employing DigiTech speakerphones (models 7700S, rev. H and earlier, and 7016S
only), you must use this programming procedure to arrange for a station port to allow
headset operation.
To Program: 1. Dial 53. “STATION FEATURES”
2. Dial 13. “HEADSET MODE”
3. Select station ports (LED On = Feature Assigned)
—Station 10–57: Dial 10–57 or press C10–C57.
4. Dial ✳ for next station feature
—OR—
dial ✳✳for configuration mode.
To change setting, repeat procedure and make opposite selection.
Headset Operation As A User Function
Description: To arrange for headset operation at a user’s telephone ( DigiTech models 7700S, rev. I
and later, Impact model 8024S, and Impression models 20nnn and 21nnn) you must
program a headset button at the LCD speakerphone to activate the headset option.
To Program: 1. Press INTERCOM at the user’s telephone.
2. Dial ✳✳1.
3. Select button to be programmed.
—Press A1–A14, B1–B10.
4. Dial 94.
5. Press SPEAKER to end.
NOTE: On Impression telephones (models 20nnn and 21nnn) you must disconnect
the handset and plug the headset cord in its place.
IMI66–132 DSU II Digital Telephone System
3 – 62 Programming The DSU II System