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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Etross
  • Model Number: ETS-4S
  • Type: GSM+PSTN
  • Port Number: 8
  • Working Frequency: GSM850/900/1800/1900MHz
  • Voice call: support
  • Low cost routing: Support
  • SMS: Support
  • PSTN port: 4
  • FXS port: 4
  • SIM card slot: 4

Packaging & Delivery

Packaging Details 1 PC/CTN, 2.50 KG/CTN
Delivery Time Within 3 days after payment

4 GSM Module+4 FXS +4 FXO (PSTN) GSM Fixed Wireless Terminal



  • 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


Inside picture:


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China (Mainland)
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Supplier Assessments:
8 Transactions 3,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $57,000
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