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

WCDMA 4 Ports GSM Gateway, WCDMA 4 Channels GSM FWT, PSTN/Gateway with Lcr 4 Ports manufacturer / supplier in China, offering Four SIM Card GSM Fixed Wireless Terminal, 16 Port 128 SIM GSM Modem Pool for Sending/Receiving Bulk SMS, Automatically SIM Rotation GSM 16 Port SMS Modem Pool and so on.

Gold Member Since 2008
Audited Supplier

Four SIM Card GSM Fixed Wireless Terminal

Min. Order / Reference FOB Price
1 Piece US $150/ Piece
Port: Shenzhen, China
Production Capacity: 10000 Unit/Units / Year
Payment Terms: T/T, Western Union, Paypal, Money Gram
Type: 4 Sims GSM FWT
Usage: Voice Call
Certification: CE, RoHS
Condition: New
Model Number: Ets-4s
FXS Rj 11 Port: 4

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Basic Info.

Model NO.
PSTN FXO( Optional)
Reversal Polarity
Dtmf or Fsk Caller ID
Pin/SIM Card Lock
Polarity Reversal
Transport Package
20PCS/CTN, Gw: 14.50kg

4 Channels 4 sim card GSM FWT for pabx with DTMF Caller ID 

Can make GSM network + PSTN landline calls automatically
Carry 4 GSM FXS+ 4 FXO PSTN Port with Low cost routing function

Main advantage/features:

  • sim card: 4
  • Requency: GSM 850/900/1800/1900MHZ quad band 
  • Interface: 4 FXS GSM+4 FXO PSTN
  • Imei changer: support
  • LCR(Low cost routing): support
  • SMS Remote manager: support
  • lock network operator: support
  • Lock sim card: support
  • Number changing: support
  • FXO escapes: support
  • IP auto: support
  • Good compatibility to any PABX 
  • Auto routing from GSM-PSTN or PSTN-GSM


ETS -4S is our company researches and develops most newly 4 road FXS (GSM)/4road FXO (PSTN) FWT Product.

ETS-4S is a GSM to Analog Converter, the device can produce a FXS line to allow a regular phone to be connected and used just like a local landline(PSTN) except your calls will go out the GSM network. This device can both receive and make calls.

The main application is: Connecting the RJ-11 FXS line to VoIP gateway such as Clarent, Cisco, Quintum or Vocaltech etc. to realize VoIP call termination. It is not a VOIP gateway, It is a GSM Fixed Wireless Terminal that produces a Analog FXS phone line.

Features and Functions:

1) It is a 4 channels GSM Gateway that has 4 ports FXS interfaces. 
2) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc.
3) Dialing tone frequency:450hz
4) Employ Industrial module [Sim300( Tri-band 900/1800/1900Mhz),Sim340 (Quadband 850/900/1800/1900Mhz)

or Wavecom Q2303A,Q2403A(Dual band 900/1800Mhz)] to make              

5) Can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set                          6) Can adjust voice volume by setting up from telephone set                              

7) SIM card supported (1.8V, 3V) 
8) Caller ID display 
9) DTMF Dialing
10) Bell signal
11) Polarity reversal
12) The RJ-11 socket which connect the phone or billing system for metering purpose
13) Antenna socket (SMA) 
14) IP Presetting.
15) Working status and Signal Strength by LED indicator                                                

16) IMEI Change (optional)

Four SIM Card GSM Fixed Wireless Terminal

Four SIM Card GSM Fixed Wireless Terminal

Four SIM Card GSM Fixed Wireless TerminalFour SIM Card GSM Fixed Wireless Terminal

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