4 - 62 Chapter 4Chapter 4 - Telephones and Optional Equipment4.17.1.1 Programming the Telephone’s Display Contrast1. With the telephone not plugged in and the handset on-hook, press the “4” and “6” buttons onthe dial pad and connect the telephone cables.2. This places the phone into Service Class R/W mode. The MW LED will not be lit.3. Press “5” to enter the Main LCD Contrast Setting mode.4. Save to memory by pressing line key 2, 8, 14, or 20. The display changes back to the ServiceClass R/W mode and the MW LED will be lit red.5. Press Exit to return the phone to idle condition.✍ At a glanceEnhanced DESI-Less (Digital) TelephoneFunction Keys: ✔ Digital DESI-Less LineKey/LCD Unit:No 60-Button DSS Console: ✔Handsfree (Speakerphone): ADA Adapter: ✔Full Duplex ✔ IP DESI-Less Line Key/LCD Unit:No APR Adapter: NoHalf Duplex - BCH Adapter: ✔Dual LEDs: ✔ 12 Line Key Kit: ✔ BHA Adapter: ✔Backlit LCD: ✔ 16 Line Key Unit: ✔ PSA Adapter: ✔Soft Keys: ✔ Protection Button: No Retro Dial Pad ✔✍ At a glanceEnhanced DESI-Less (IP) TelephoneFunction Keys: ✔ Digital DESI-Less LineKey/LCD Unit:No 60-Button DSS Console: ✔Handsfree (Speakerphone): ADA Adapter: ✔Full Duplex ✔ IP DESI-Less Line Key/LCD Unit:No APR Adapter: NoHalf Duplex - BCH Adapter: ✔Dual LEDs: ✔ 12 Line Key Kit: ✔ BHA Adapter: ✔Backlit LCD: ✔ 16 Line Key Unit: ✔ PSA Adapter: ✔Soft Keys: ✔ Protection Button: ✔ Retro Dial Pad ✔
