HUAWEI F688 Fixed Wireless Terminal WCDMA/GSM dual mode DECT 1.8GHz Voice service Multiple supplementary services Online update Elegant design Standards WCDMA/GSM/GPRS/EDGE DECT DECT 1.8 GHz Voice services High quality voice services that support Full Rate (FR), Half Rate (HR), Enhanced Full Rate (EFR), and Adaptive Multi-Rate (AMR). Supports the function of sending and receiving text messages. Supplementary services A rich collection of supplementary services: caller ID display, call forwarding, call waiting, call holding, call barring, and three-way calling (network-dependent and must be subscribed from the service provider). Online update Supports the online update function of Firmware Over-the-Air (FOTA). Elegant design With an elegant and stylish appearance, the WCDMA.GSM dual mode Fixed Wireless Terminal (FWT for short) is an ideal wireless terminal for household and corporation use.
Hardware Specifications Physical Specifications Base dimensions (W D H): 184.95 mm x 124.45 mm x 46.35 mm Handset dimensions (W x D x H): 26.25 mm x 50.05 mm x 152.10 mm Weight: about 370 g (including the handset battery) Placement: horizontally placed Antenna: built-in antenna Ports (U)SIM card slot 2FF / Data port Micro USB port for data service and upgrade purposes / Power supply port 1-pin connector Charging reed Indicators Operating status indicator One / Battery indicator One / Signal strength indicator One / Power Supply AC 100 240 V / DC 5 V/1 A / Battery Type Rechargeable NiMH battery Rechargeable NiMH battery Capacity 3.6 V, 1000 mah 2.4 V, 600 mah Typical talk time 3 hours (depending on the network) 6 hours (depending on the network)
Typical standby time 8 hours (depending on the network) 100 hours (depending on the network) Keypad Shortcut keys Three keys: power on/off key, registration/paging key, and function key (11 keys) up/down/left/right navigation keys, OK key, left/right function keys, send key, end key,mute key, and Intercommunication key Number keys / 12 keys: 0 9, *, and # Backlight / White Display Type / Thin-film transistor (TFT) Size / 1.8 inches Resolution / 128 160 pixels Color / 65K color Backlight / LCD backlight Working Environment Working temperature: 0 C to +40 C Storage temperature: 20 C to +70 C Working humidity: 5% to 95% Frequency Specifications Technical standards Working frequency WCDMA: 900/2100 MHz GSM/GPRS: 900/1800 MHz WCDMA 900 MHz: 880 915 MHz/925 960 MHz (uplink/downlink) WCDMA 2100 MHz: 1920 1980 MHz/2110 2170 MHz (uplink/downlink) GSM/GPRS 900 MHz: 880 915 MHz/925 960 MHz (uplink/downlink) GSM/GPRS 1800 MHz: 1710 1785 MHz/1805 1880 MHz (uplink/downlink) DECT DECT 1.8 GHz
Maximum transmit power Static sensitivity WCDMA 900/2100 MHz: 24 dbm (+1.7 db/ 3.7 db) GSM/GPRS 900 MHz: 33 dbm (+2 db/ 2 db) GSM/GPRS 1800 MHz: 30 dbm (+2 db/ 2 db) WCDMA 900/2100 MHz: better than 106 dbm/3.84 MHz GSM 900/1800 MHz: better than 102 dbm/200 khz 20dBm (+2dB/ 2dB) Better than 83 dbm Software Specifications Voice Services Basic voice services Voice code: FR, HR, EFR, and AMR (base); G.726 (handset) Dialing from recently dialed number Dialing from the phone book Dialing from a message Speed dialing Volume adjustment of five levels Paging Three-way calls (network dependent) Emergency calls Calls in hands-free mode Internal calls Call History Missed calls: up to 20 records Received calls: up to 20 records Dialed calls: up to 20 records Phonebook FWT memory: up to 1000 contacts (U)SIM card memory: depend on the (U)SIM card Copy contacts from the FWT to the (U)SIM card or from the (U)SIM card to the FWT Shared between the base and handset Sending and receiving text message (U)SIM card memory: depend on the (U)SIM card memory FWT memory: shared by the inbox, outbox, and draft box. It can save up to 500 messages Sending a message through the phonebook Multiple handsets simultaneously viewing or editing text messages
Application Alarm Security Settings Keypad lock PIN: depend on the (U)SIM card Supplementary Services (Network Dependent) Caller ID display Call waiting Call barring Call forwarding Ringtones and Notifications Incoming call notification New message notification Low battery notification Alarm notification Key-touch tone Chord ringtones 10 preset ringtones Power on/off tone Packing List Standard Components Base Handset Base battery Handset battery Base power adapter User Guide