- Connects to Model 8520 and Model 8560 display phones
- Allows you to program up to 16 keys as DSS/BLF keys, features or secondary extension keys
- Light Emitting Diode (LED) lamps indicate whether your associates are available or on the phone
- Enables quick assess to calls ringing or holding at another station, by programming keys as secondary extensions
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Provides one-touch access to your favorite feature codes