SIM Card GSM to PSTN Analogue Telephone Line Converter Ets 8828
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Product Highlights
- GSM to PSTN Converter: Replaces old PSTN systems by transferring SIM calls to RJ11 devices like phones and PBX.
- Dual RJ-11 FXS Ports: Features 2 RJ-11 outputs allowing connection to ordinary telephones and PBX extensions.
- LCD Display Status: Real-time display of working status and signal strength for easy monitoring.
- Full Band Support: Supports GSM850/1900MHz and 900/1800MHz phase 2+ for global compatibility.
- Adjustable Settings: Dial interval adjustable from 0.5 to 9 seconds; voice volume adjustable via command.
- Optional Backup Battery: Optional 7.2V 1000mAh Li-ion battery provides 24h standby and 2.5h talking time.
- Versatile Applications: Suitable for ordinary phones, PBX, billing machines, alarm systems, and VoIP gateways.
- Customization Available: ODM service available with customization options from samples.
Product Attributes
- Customization
- Available
- Type
- GSM
- Usage
- PBX Telephone Security System Fax(Optional) PSTN
- Model NO.
- ETS-8828
- Condition
- New
- Transport Package
- Gift Box /Carton
- Trademark
- OEM
- Origin
- China
- Production Capacity
- 1000 PCS/Weak
- Package Size
- 33.00cm * 19.00cm * 8.00cm
- Package Gross Weight
- 1.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of SIM Card GSM to PSTN Analogue Telephone Line Converter Ets 8828
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Product Description
GSM Fixed wireless terminal ETS 8828 with LCD display
RJ11(FXS)Ports *2 , SIM slot*1
Main Function:
For replacing the old PSTN system. Transfer the sim call to connecting RJ11 devices. Economical and easy to maintain.
Apply to the devices :
Ordinary telephone,PBX,Billing machine,Elevator/Alarm security system,VOIP FXO gateway etc .

1.General Description
GSM FWT-8828 is a GSM to analog converter with LCD display(single port, insert 1 sim card only), 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 applications are as below:
Connect RJ-11 FXS line to ordinary telephone set for voice call;
Connect PBX for call extensions;
Connect billing systems for public phone use;
Connect VoIP FXO gateway to realize VoIP call termination;
Connect alarm system for security purpose, etc.
2.Features:
1) It is a 1 channel GSM Gateway which has 2 RJ-11 outputs for extensions;
2) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc. ;
3) Dialing tone frequency:450hz;
4) Employ Industrial module to make;
5) Can adjust dial interval from 0.5 sec to 9 secs by setting up from telephone set;
6) Can adjust voice volume by command from telephone set;
7) SIM card supported (1.8V, 3V);
8) Caller ID display;
9) DTMF Dialing;
10) Bell signal;
11) Polarity reversal/12Khz/16Khz pulse billing
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 LCD display;
16) IMEI Change (optional).
17) back up Li-ion battery( Optional) 7.2V 1000mAh.standby 24 hours,talking time: 2.5hours.
3.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
AC-Adapter interface: Input: AC 110~240VAC 50~60Hz
Output: 12DC 1A.
AC-Adapter type: EU,US,AU,British can be optional
4.Operation Circumstance:
Operation temperature: -10c~60C
Storage temperature:-20C~70C
Operation humidity:45%-95%
Atmosphere pressure:86-106Kpa
Environment noise: <60DB
Transmitting Power:2W
Sensitivity: <-104dbm
Antenna Amplifying: >2.5db
Dialing frequency: 450Hz
Hanging voltage: 45V
Picking current: 30mA/41mA
5.Packing List:
| Item | Qty | Remarks |
| GSM FWT 8828 | 1 | White color |
| User's Manual | 1 | Printed |
| Antenna | 1 | 3M cable antenna |
| Power supply | 1 | DC 12V 1A |
| Back up battery | 1 | In-built Li-ion battery |
6. Pictures


About Etross

About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR242401". Items marked "" are certified.
Company Profile
General:
Shenzhen Etross Telecom Co., Ltd is a high-tech telecom company which specializes in developing and manufacturing wireless products, including 4G/3G/2G Fixed wireless terminal, 4G/3G/2G Fixed wireless telephone, 4G/3G/2G Fixed cordless phone, 4G CPE Router and SMS/VoIP Gateway, etc. For years, we have been devoted to providing good quality and hi-tech products to our clients, to be a China gold supplier of Telecom and IT products, we have operated around 21 years since 2006.
Business Description:
Currently we have several modern production lines producing 4G/3G/2G Fixed wireless terminal and Fixde wireless telephone, 4G/3G/2G Fixed cordless phone, 4G CPE Router, SMS/VoIP Gateway devices and Telemarketing terminal products. The production capacity can reach 1000 sets a day. In our company's R&D center, our experienced engineers are working to develop new high technology to guarantee our products' good quality and competitive advantage in the market. And some of our products have passed CE, FCC &RoHS certification.
Etross series products have been sold to more than 100 cities in China and exported to over 70 countires.
Major Products
Etross products are categorized under the following different segments:
1. Fixed Wireless Terminal Series: 4G LTE/3G WCDMA/ 2G GSM/2G CDMA
2. Fixed Wireless Telephone Series: 4G LTE/3G WCDMA/ 2G GSM/2G CDMA
3. Fixed Cordless Phone Series: 4G LTE/3G WCDMA/ 2G GSM/2G CDMA
4. CPE Router Series: 4G Indoor/Outdoor
5. SMS Gateway: 4G LTE/2G GSM
6. VoIP Gateway: 4G LTE/3G WCDMA/ 2G GSM/2G CDMA
7. Telemarketing Terminal: 4G LTE/2G GSM
Thanks for using Etross Series products, hope you can make more successfully.
About Our Factory & Business Background
- Address
- 3rd Floor, Block B, Yuetong Comprehensive Bldg.,Min Le road, Longhua District, Shenzhen, Guangdong, China
-
Terms of Payment
- T/T, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shenzhen Port
-
Minimum Order Quantity
- 1 PC
-
Supply Chain Partners
- 20
Our Production Capability & Technical Expertise
- Main Products
- Fixed Wireless Phone, Fixed Wireless Terminal, SMS Gateway, VoIP Gateway, CPE Router, Telemarking Terminal, Fixed Cordless Phone
-
Production Machines
- Electric screwdriver, Test computer, DC power supply, Welding machine, Automatic packing machine, Oscilloscope
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Customization Options
- Customization from Samples
-
ODM Service Available
- Yes
-
R&D Engineers
- 4 people
Our Industry Experience & Global Business Record
-
Export Year
- 17 Years
-
Main Markets
- North America, Europe, Africa, East Asia(Japan/ South Korea), Australia
-
Number of Foreign Trading Staff
- 6
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
FAQ
- What is the main function of this device?
- It replaces old PSTN systems by transferring SIM calls to connected RJ11 devices like telephones and PBX.
- How many SIM cards does the ETS 8828 support?
- It supports 1 SIM card only with a single port design.
- What are the supported GSM frequency bands?
- It supports GSM850/1900MHz and 900/1800MHz phase 2+ full band.
- Can I adjust the dial interval and volume?
- Yes, dial interval can be adjusted from 0.5 to 9 seconds, and voice volume can be adjusted via telephone commands.
- Is there an optional backup battery?
- Yes, an optional 7.2V 1000mAh Li-ion battery is available for 24 hours standby and 2.5 hours talking time.
- What is the minimum order quantity?
- The minimum order quantity is 1 PC.
- What is the lead time for production?
- The average lead time is within 15 workdays for both peak and off-peak seasons.
- Does the device support customization?
- Yes, ODM service is available with customization options from samples.
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