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General| Speakerphone | Yes |
|---|---|
| Headset Jack | Yes |
| Type | Digital Phone |
| Display | Backlit LCD |
| Power Supply | Via system |
Procedures for installing the main KSU unit, including precautions.
Steps for installing the external backup battery box and batteries.
Procedures for mounting, cabling, and setting expansion interface cards.
Installing telephones, DSS consoles, headsets, and doorphones.
How to enter and exit the system's programming mode.
Steps for replacing the system's backup Lithium battery.
Procedures for upgrading the system's main software.
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