Brand: Etross or OEM brand
Model No.: Etross-8848
Product name: GSM G3 FAX Terminal/GSM Fixed Wireless Terminal with Fax/GSM Voice Fax Gateway
Frequencies: GSM900/1800MHz GSM850/900/1800/1900MHz

Advantages:
1) GSM G3 fax terminal supports voice and fax function;
2) Employ Siemens TC35i /MC55i module to make ;
3) Can send and receive fax by connecting to an analogue fax machine;
4) Compatible to most telephones, PBX devices and analogue fax machines;    
5) Strong signals with high gain antenna;                                    
6) Attractive plastic casing;
7) SIM card supported (1.8V, 3V);
8) DTMF CLIP ( Caller ID display);
9) No noise and clear voice;
10) Locking PIN / network (optional);
11) Provides reversal polarity signal for billing;
12) Suitable for all kinds of weather and environment;
13) Suitable for wide voltage range and low power consumption;
14) RJ-11 ports (both can connect to ordinary phone set and analogue fax     machine);
15) Back up Li-ion battery (Optional) 7.2V 1300mAh.standby 24hrs, talking     time: 2.5hrs.

Specifications:
1) Air interface: GSM 900 / 1800MHz or Quad band (850/900/1800/1900Mhz)
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
2) External in interface:
   The power supply interface: POWER/DC12V
   Outside phone interface: 2 RJ11 (PHONE)
   The antenna interface: SMA (Female)
   1.8V, 3V SIM interface
3) Power adapter:
   Input voltage: AC90-260V/ 50HZ
   Output current: 1.2a
4) Backup battery (Optional)
   Build-in li-ion battery. 7.2V 1200mAh
5) Antenna:
   Frequency Band:
   890-960 MHz / 1710-1880 MHz
   Gain: 2.5dBi
   Wave ratio: <1.5
   Input resistance: 50ohm.
   Polarize method: perpendicularity polarizes
6) Phone interface: supply RJ-11 Phone Interface
   Hanging voltage: 45V
   Picking off voltage: 30mA / 41mA
   Dialing tone Frequency: 450Hz
   Antenna interface: Antenna amplifying>2.5db
   Sensitivity:<-104DBM
   Transmitting power<3W
   AC-Adapter interface: Input: AC 110~240VAC 50~60Hz
                         Output: 12DC 1A
   AC-Adapter type: EU, US, AU, British can be optional

Operation Circumstance:
Operation temperature: -10c~60C
Storage temperature:-20C~70C
Operation humidity:45%-95%
Atmosphere pressure:86-106Kpa
Environment noise:<60DB

Package(Standard carton,20pcs/carton):
Color: White/black(optional)
Size: (LxWxH): 420mmX 220mm X 70mm (not include the antenna)
Weight:0.8kg (include the antenna, power adapter)