Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Plant Area:
500.0 square meters
OEM/ODM Service
Sample Available
MEI Awards

4 Ports GSM/PSTN FWT, FXS/FXO FWT, 4 Port GSM/PSTN Gateway manufacturer / supplier in China, offering 4 SIM 4 Port GSM Gateway/FWT Fixed Wireless Terminal/GSM Telular, GSM Cordless Phone GSM850/900/1800/1900MHz (3G/4G Optional), Volte Fixed Wireless Telephone 4G Lte 6688 and so on.

Gold Member Since 2008
Audited Supplier
Supplier Homepage Products Fixed Wireless Terminal 3G 4 SIM 4 Port GSM Gateway/FWT Fixed Wireless Terminal/GSM Telular

4 SIM 4 Port GSM Gateway/FWT Fixed Wireless Terminal/GSM Telular

Min. Order / Reference FOB Price
1 Piece US $100-180/ Piece
Port: Shenzhen, China
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Type: GSM
Usage: Voice Call
Certification: CE
Condition: New
Color: Black
Working Frequency: GSM850/900/1800/1900MHz

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Basic Info.

Model NO.
Low Cost Routing
Port Number
FXS Port
FXO Port
SIM Card Slot
HS Code

4 Port Quad-band GSM Gateway with LCR (3G Optional)

Model GSM FWT ETS-4S is 4 GSM modules + 4 FXS ports.

Model GSM FWT ETS-4S/O is 4 GSM modules + 4 FXS ports + 4 FXO ports .

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Etross or OEM
  • Model Number: ETS-4S
  • Type: GSM+PSTN
  • Port Number: 8
  • Working Frequency: Quad band GSM 850/900/1800/1900MHZ
  • SLIC(FXS): 4
  • DAA (FXO): 4
  • sim card: 4
  • imei numbers NUMBER: changeable
  • LCR(Low cost routing): support
  • SMS manager: support
  • lock network operator: support
  • Number changing: support


ETS-4S is our newly designed GSM FWT with 4 GSM Module+4 FXS port +4 FXO (PSTN) port

GSM+PSTN fwt with LCR has the function to choose route automatically.When you dial from GSM+PSTN fwt, it will check the prefix no. you preset into device.Then it will call out through GSM or PSTN according to your presetting rules. And GSM /PSTN both support call in .

It will dial out through GSM if you don't connect to PSTN or PSTN line is disconnected, and it will dial out through PSTN if you don't insert SIM card or GSM network has no signal.

Main advantage/features:

1. Uses the world to be advanced SiliconLab Corporation SLIC(FXS) and  DAA(FXO)  plan, the  compatibility and the sound quality are in the global advanced standard

2. Through SMS carries on the disposition to the equipment, convenient, direct-viewing

3. The digit dialing prefix establishment function,   may realize  GSM and Between FXO LCR route

4. The digit dialing length establishment function, the user does not need in the digit dialing to join finally#The number may also realize the fast digit dialing

5. Number transformation function

6. Number Canada dials the function

7. The operator locks the function

8. The FXO mouth has escapes the function

Technical Specifications

Air interface standard: GSM850/1900Mhz,900/1,800Mhz phase 2+ full band 
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 
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
Transmitting power<3W

Color: White /Black (optional)
AC-Adapter interface: Input: AC 110~240VAC 50~60Hz
Output: 12DC 1A.

AC-Adapter type: EU, US, AU, British can be optional
4 SIM 4 Port GSM Gateway/FWT Fixed Wireless Terminal/GSM Telular
4 SIM 4 Port GSM Gateway/FWT Fixed Wireless Terminal/GSM Telular


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