F685-21:TS-9 indoor antenna interface Indicator Item Base Handset Operating status indicator One / Battery indicator One / Signal strength indicator One
Power supply Item Base Handset AC 100V-240V / DC 5V/1A Item Base Handset Type NiMH, rechargeable battery Rechargeable, Li-ion Capacity 3.6V, 1000mAh 3.7V,600mAh Typical talk time 3 hours (depending on the network) 12 hours (depending on the network) Typical standby time / 150 hours (depending on the network) Keypad Item Base Handset Shortcut key (3 keys) power on/off key, registration/paging key, function key (14 keys) up/down/left/right scroll key, OK key, left/right soft key, power on/off key, Send key, hands-free key, Clear key, Mute key, Speed dial key, Intercom key
Number key / Number key: (12 keys) 0-9,
Display Screen Item Base Handset Type / TFT Size / 1.8 inches Resolution / 128×160 dots matrix Backlight / Provides backlight for the LCD
Antenna specifications Signals may be weak in some areas; thus, you can choose whether to use the indoor antenna. The indoor antenna is an optional accessory, it is suggested put the indoor antenna near the window when using it. The indoor antenna can be used indoor only.
Name F685-21 F685-20 Standard configuration Built-in antenna VSWR <3.0 Gain low frequency: >-2dBi high frequency: >-1dBi Maximum power 4 W Input impedance 50Ω
Voice service Supports the voice service Voice code: Base:FR, HR, EFR or AMR, Handset: G.726 Dial the recently dialed number Dial a number from the phone book Dial a number from the message Speed dialing Supports volume adjustment of 5 levels Supports paging function
Call history Missed calls: Up to 20 records Received calls: Up to 20 records Dialed calls: Up to 20 records
Phone book The FWT memory: Up to 1000 contacts The USIM card memory: depend on the USIM card memory Copy records from the FWT to the USIM card or from the USIM card to the FWT Base and handset shared phone book Supports sending and receiving text short message Application Alarm Safety setting Key Guard FWT lock PIN code (USIM card dependent) Supplementary services (Network dependent) Caller ID display Call waiting
Ringtone and Prompt Incoming call prompt New message prompt Low battery prompt Alarm prompt Key beep The FWT provides chord ringtones Built-in 10 ringtones Power on/off ringtone
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