BTDD-5 Inter-Tel Model 8450 (Mitel Networks)
The Inter-Tel Model 8450 is a Direct Station Select/Busy Lamp Field (DSS/BLF) expansion module that connects to Inter-Tel Models 8560 and 8520 digital display phones for one-button access to 50 additional extensions and other features or resources. The Inter-Tel Model 8450 is a Direct Station Select/Busy Lamp Field (DSS/BLF) expansion module that connects to Inter-Tel Models 8560 and 8520 digital display phones for one-button access to 50 additional extensions and other features or resources.

- Connects to Model 8560 and Model 8520 digital display phones for one-button access to additional extension numbers, features and resources.
- Provides single-button access to 50 extension numbers, hunt group pilot numbers, trunks or trunk groups and/or feature codes
- A single Model 8560 or Model 8520 digital phone can be equipped with up to four 8450 units, increasing your capacity to as many as 200 programmable buttons.
- LED (Light Emitting Diode) lamps indicate whether associates are available or unavailable
Button Assignment Options:
- Call Key Answers ringing and holding outside calls, up to 10 Call Keys can be designated in each keymap
- DSS/BLF Key Provides one-key dialing of extension numbers; the lamp shows the status of the associated station or hunt group
- Feature Key Accommodates one-button dialing of feature codes; can be quickly programmed to turn features on and off with the touch of a button
- Forward Key Used for the call forwarding feature
- Hunt Group Key Used for one-button dialing of hunt group pilot numbers to search through a designated group of stations until finding one which is available
- Programmable Key Provides personalized feature code dialing at individual stations
- Speed Dial Key Allows one-button dialing of up to 10 extensions or outside numbers