Telular GSM FWT Etross 8848G

Features and Functions: 
1) Simple to install and easy to maintain 
2) Steady industrial module and reliable design ensures good performance 
3) Provides optimized circuit directly connecting the exchange device for Extensions 
4) Compatible to most telephones, PBX and VoIP (for call Termination) 
5) Connect to Alarm systems to realize wireless alarm(for security use)
6) Strong signals with high gain antenna 
7) Support SIM card (1.8V,3V) 
8) Support DTMF 2'nd dialing out
9) DTMF CLIP(Caller ID display)
10) Hide subscriber caller id (been sent out)
11) Provides reversal polarity signal for metering 
12) Signal indiator and power indicator and working status indicator
13) Suitable for wide voltage range and low power consumption 
14) Suitable for all kinds of weather and environment 
15) Locking PIN / network (optional) 
16) GPRS function(optional)
17) Support IMEI change(optional)
18) Back up li-ion battery(optional)

Specifications: 
1) Air interface standard: GSM850/1900Mhz,900/1,800Mhz phase 2+ full band
2) Frequency ranges:
    A) GSM 850                                           GSM 1900:
        I) Transmission: 869.2 ~ 893.8MHz      I) Transmission: 1, 930 ~ 1, 990MHz
        Ii) Reception: 824.2 ~ 848.2MHz          Ii) Reception: 1, 850 ~ 1, 910MHz 
    B) GSM 900:                                          GSM 1800: 
        I) Transmission: 890 ~ 915MHz           I) Transmission: 1, 710 ~ 1, 785MHz 
        Ii) Reception: 935 ~ 960MHz               Ii) Reception: 1, 805 ~ 1, 880MHz 
3) Channel space: 200kHz 
4) User line, bell signal: In line with GB/T15279 
5) Max power: 0.25W / 0.5W 
6) Consumption: 
A) Immobility: Less than 25mAh 
B) Transmission: Less than 400mAh 
7) Sensitivity: -105dB 
8) Dial tone frequency: 450MHz (standard) 
9) Surrounding temperature: -10°C ~ +40°C 
10) Relative humidity: 45% ~ 90% (without frost) 
11) Atmosphere pressure: 86 ~ 106KPa 
12) Environment noise: <60dB 
13) Antenna amplifying: 3.5dB (omni directional), 12dB (certain direction / 
Chosen direction) 
14) AC power: DC 10V - 20V 
15) Input: AC100 - 230V, 50 / 60Hz 
16) Output: 12V 1A 
17) Switching type / transformer type AC adapter (optional) 
18) Connector of power: US or European type
19) Dimensions (L x W x H) (average): 185 x 135 x 22mm 
20) Weight: 
    A) FWT: 400g 
    B) Full set with AC adapter, antenna and box: 800g 
21) Colors: White/grey/black (optional) 
22) Connection mode: RJ-11 phone sockets 
23) Antenna connection: SMA antenna connection

Making Calls:
1. Lift the handset or press “hand-free” key, you will hear dialing tone, then you can dial the telephone numbers you want to call.
2. Dialing: dialing the telephone numbers you want to call
3. On completion of dialed digits, you can press “#” to transmit the called telephone numbers. If you don’t dial any key for continual 3 seconds during the dialing, terminal transmits called telephone numbers automatically.
4. During calls, if the telephone numbers is not free ones, the terminal sends out anti-polarity signal.
5. If the calling party or called party hangs up, the terminal stops sending out anti-polarity signal.

Answering Incoming Calls:
When some calls are coming in, if the connected telephone has the function of displaying incoming calls, the telephone rings and displays the incoming telephone numbers. Now users can lift the handset or press “hand-free” to answer it.