Chapter 4 - Terminals and Optional EquipmentChapter 4 4 - 43.For specifications, refer to UX5000 SYSTEM SPECIFICATIONS (page 6-1).4.13.5.1 Operation4.13.5.1.1 BTH / Bluetooth Handset:Display: Supports 20 characters/2 line display. Icons indicate antenna strength andbattery level. The display contrast is adjusted using the volume up/down keys on thekeyset/terminal.Touch Tone: Press ‘o’ on the dial pad to activate/deactivate the touch tone. Whenactivated, a 1 kHz single tone will be heard when any key is pressed.Music on Hold: Music is provided by the UX5000 system for keysets or from the IPterminal.Volume Control: The volume for handset and ringer volume is adjusted using the BTH’scursor key.4.13.5.1.1 BTC / Bluetooth Cradle:Charging: Built-in battery charger. To recharge the handset, place the handset on theBluetooth Cradle.Figure 4-17: BLUETOOTH CORDLESS HANDSETOption CompatibilityIP Terminal Digital KeysetIP-CTS Enhanced Value Enhanced Value✔ ✔ NA ✔ NACordlessHandsetRF Cradle