4 FXS 4 FXO GSM FWT PSTN PBX Sim Communicator  

WCDMA or GSM 4 FXS port 

WCDMA or GSM 4 FXO port 

WCDMA or GSM 4 FXS Port+ 4 FXO port

Clien can choose to call from GSM network or PSTN line

• 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

Description:

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)

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
Sensitivity:<-104DBM
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