4G GSM Gateway to Analog Converter for Mobile SIM
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Product Highlights
- Versatile Connectivity: Connects ordinary phones, PBX, alarm systems, and VoIP gateways via RJ-11 FXS interface.
- Dual Network Support: Supports 3G WCDMA and 2G Quad-Band GSM for reliable voice calls.
- Flexible Dialing Control: Adjustable dial interval (0.5s-9s) and voice volume via telephone set.
- Caller ID & DTMF: Supports Caller ID display and DTMF dialing for enhanced functionality.
- Optional Backup Battery: Optional 7.2V Li-ion battery provides 24h standby and 2.5h talking time.
- Global Power Adapter: Compatible with EU, US, AU, and British plug types for international use.
- Customizable Colors: Available in White or Black to match user preferences.
- Industrial Grade Module: Uses UC-15 3G Tri-Band module for stable performance.
Product Attributes
- Customization
- Available
- Type
- FWT 3G to Landline Converter
- Usage
- Voice
- Model NO.
- 4G-8848
- Certification
- CE
- Condition
- New
- Caller ID
- Avaialble
- Dtmf
- Avaialble
- Antenna
- 3-M Cable Antenna
- Network
- 3G/2g
- Port/SIM Card
- 1 PCS
- Caller ID Display
- Support
- Back up Battery
- Rechargeable
- Lock Pin or Network or SIM Card
- Support
- Interface
- Rj 11 FXS Interface
- Dial Tones
- 450Hz
- Transport Package
- 20PCS/CTN, 12.50kg/CTN
- Trademark
- etross-8848
- Origin
- China
- HS Code
- 85251790
- Production Capacity
- 10, 000PCS/Month
- Package Size
- 20.00cm * 15.00cm * 7.00cm
- Package Gross Weight
- 0.800kg
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 4G GSM Gateway to Analog Converter for Mobile SIM
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Product Description
4G GSM Gateway to Analog converter for mobile sim
1, General Description
4G WCDMA FWT-8848 is a WCDMA to Analog Converter(single port, insert 1
sim card only), the device can produce a FXS line to allow a regular phone to
be connected and u sed 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 connect Ordinary
telephone set for voice call; to connect PBX for call extensions; to connect
billing systems for public phone use; to connect VoIP FXO gateway to realize
VoIP call termination; to connect alarm system for security purpose, etc. It is not
a VOIP gateway, nor a GSM+VOIP gateway, It is a GSM Fixed Wireless
Terminal that produces an analog FXS phone line .
Module employed:
UC-15
3G Tri-Band UMTS/HSDPA/HSUPA(WCDMA/FDD) :3G/UMTS 850/1900MHZ
3G/UMTS 900/2100MHZ
3G/UMTS 850/2100MHZ
2G Quad-Band GSM850/900/1800/1900Mhz
Applications:
Can connect to regular telephone set
Can connect to pabx,pxb for extension
Can connect to home alarm system, alarm panel
Can connect to phone billing meter/payphone
Can connect to Voip gateway
Can connect to lift/elevator
Features:
1) It is a 1 channel WCDMA 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 0.5sec 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).
17) back up Li-ion battery( Optional) 7.2V 1300mAh.standby 24hrs,talking time: 2.5hrs.
Specifications
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


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 17 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
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 3rd Floor, Block B, Yuetong Comprehensive Bldg.,Min Le road, Longhua District, Shenzhen, Guangdong, China
-
Plant Area
- 750 square meters
-
Number of Employees
- 18
-
Registered Capital
- 1,000,000 RMB
-
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 Lines
- 1
-
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
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples
-
ODM Service Available
- Yes
-
R&D Engineers
- 4 people
-
Traceability of Raw Materials
- No
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2006-03-30
-
Export Year
- 17 Years
-
Main Markets
- North America, Europe, Africa, East Asia(Japan/ South Korea), Australia
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 6
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What is the primary function of this device?
- It is a 4G GSM Gateway to Analog Converter that allows a regular phone to connect via a SIM card, functioning like a local landline but using the GSM network.
- Can this device connect to a PBX system?
- Yes, it can connect to a PBX for call extensions, as well as to billing systems, alarm systems, and VoIP gateways.
- Is this device a VoIP gateway?
- No, it is a GSM Fixed Wireless Terminal that produces an analog FXS phone line, not a VoIP or GSM+VoIP gateway.
- What network bands does it support?
- It supports 3G WCDMA (850/1900/900/2100 MHz) and 2G Quad-Band GSM (850/900/1800/1900 MHz).
- Does it support Caller ID and DTMF?
- Yes, the device supports Caller ID display and DTMF dialing.
- Can I adjust the dial interval and volume?
- Yes, you can adjust the dial interval from 0.5 seconds to 9 seconds and the voice volume directly from the telephone set.
- What are the power input requirements?
- It accepts AC 110~240VAC 50~60Hz input and outputs 12DC 1A, with optional EU, US, AU, or British plug adapters.
- Is customization available for this product?
- Yes, customization options include color (White/Black), antenna type, and optional IMEI change or backup battery.
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