32 Ports 512 SIM VoIP GSM Gateway with IMEI Changer for SIP PBX Call
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Product Highlights
- High Capacity SIM Support: Supports up to 64 SIM cards with 8 concurrent GSM ports for heavy-duty VoIP calls.
- Advanced Anti-Block Features: Includes Multi-SIM rotation, Human behavior simulation, and BTS rotation to prevent IP blocking.
- Auto IMEI Management: Features auto IMEI change, generation, and modification capabilities for enhanced flexibility.
- Comprehensive Network Protocols: Supports IPv4, TCP, UDP, PPPoE, DHCP, NAT, and SIP V2.0 for versatile connectivity.
- Flexible Connectivity Options: Built-in WiFi router and optional 4G module allow direct modem connection or mobile network usage.
- Smart QoS and Bandwidth Optimization: Maintains high voice quality on fast or slow internet lines with SBO and Smart QoS technology.
- Multi-Function SMS and USSD: Enables SMS sending, batch SMS, receiving, and USSD balance inquiries via web interface.
- User-Friendly Web Management: Features HTTP web interface for configuration, firmware upgrade, and real-time call status monitoring.
Product Attributes
- Customization
- Available
- Type
- 8 SIM Voice FWT
- Protocol
- Ipv4, TCP, UDP, Pppoe, DHCP, DNS, Nat, HTTP, FTP,
- Model NO.
- 32 x8
- Number of Channels
- 8 Channels GSM VoIP Gateway GoIP Gateway
- Color
- Blue
- Product Name
- 8 Channels GSM VoIP Gateway GoIP Gateway
- Network
- GSM
- SIM Card Slot
- 256
- API
- Support
- Bulk SMS/Voice
- Support
- SIM Card Rotation
- Support
- IMEI Change
- Support
- Dtmf & Tts & Ivr
- Support
- Firmware Update
- HTTP/TFTP
- Weight
- 5kg
- Transport Package
- 1PCS/Carton
- Specification
- L41 X W29 X H12(cm)
- Trademark
- Etross or OEM
- Origin
- Shenzhen, China
- HS Code
- 8517629300
- Production Capacity
- 1000PCS/Month
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 32 Ports 512 SIM VoIP GSM Gateway with IMEI Changer for SIP PBX Call
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Product Description
32 PORTS WITH 512 SIM
16 PORTS WITH 128 SIM

Overview GSM VoIP gateway ETS8x8G is newly designed IP to GSM gateway supporting maximum 8 ports 64SIMs of GSM Voice interface, it can effectively realize the smooth transition between PLMN(GSM) and VoIP network. Compact cost effective design and system architecture of GSM Gateway ETS-8x8G provides customer satisfaction in high quality , performance and system reliance. Mostly important, GSM Gateway ETS-8x8 features with new functions such as Multi-SIM rotation, Human behavior, BTS rotation,proxy server encryption for anti IP block, ETS bandwidth optimization (SBO), Auto IMEI change and generation, auto activation SIM card etc. This product uses the state-of-art technology voice compression and Smart QoS of ETS to maintain the maximum voice quality under fast internet line and slow internet line as well, thus It is an ideal gateway for heavy duty VoIP call termination (VoIP to GSM) and Origination (GSM to VoIP), it is fully compatible with leading soft switch and SIP server.
Main features
Support 8 GSM ports, up to 8 concurrent calls (1 Ports 8 SIM card ,total 64 SIM card)
Support GSM: Quad-band 850/900/1800/1900Mhz
CDMA: 450/ 800/ 1900Mhz optional
3G/UMTS: 850/900/2100Mhz optional
Support Multi SIM card rotation to avoid SIM block
Support Human behavior function
Support SBO (Switch Bandwidth Optimization)
Support BTS rotation and lock
Support encryption for VOS for anti-block of IP port
Support SMS Sending / batch SMS Sending / receiving
Support USSD balance inquiry
Auto activation SIM card and recharge
Support IMEI change , auto IMEI change and generation
Automatically lock/open SIM card/ port according to its balance or alarm
Support Codec: G.711a/u law, G.723.1, G726,G.729AB
Support bandwidth optimization (optional)
Built-in WiFi router, can directly connect to Modem
Built-in 4G module (optional), can use through 4G network if 4G module inserted
If with 4G module and mobile battery /power supply, then it can do call termination with mobility
Sys log output by USB interface for tracking records
User friendly web management interface
HTTP Web support for configuration and upgrade
SIM swapping
HTTP Web support ASR, ACD, PDD, SIM balance inquiry
Convert the number as preset rules /Number translation
Call routing / digit map
CDR management
IVR customized
BCCH management
SIM card rotation conditions:
1) According to accumulated call duration check (talk time)
2) According to accumulated idle&talking check(use time)
3) According to accumulated calls check (call counter)
4) According to consecutive call failure check(call failure)
5) According to consecutive low-duration calls check (Low duration)
Human behavior conditions:
1) According to accumulated call duration check (talk time)
2) According to accumulated idle&talking check(use time)
3) According to accumulated calls check (call counter)
Specifications
Interfaces
Mobile Ports: 8 ports GSM/CDMA channels
Two(2) 10/100Mbps Ethernet Interface (2xRJ45)
USB: 1 port
SIM Card interface: 64 pieces + 4G SIM card 1 piece (Optional)
4G interface: 1 channel
Wifi port: 1
Voice Processing
Voice Codec: G.711a/u law, G.723.1, G726,G.729AB
QoS: Diff Serve, T oS, VAD, PLC, CNG
Call Features
Calling Type: Terminate/Originate calls
IVR Voice Prompt: Two stage dialing, Customized IVR
Call handling: One stage dialing, Configurable dial plan, digit map
DTMF: RFC2833, SIP
Mobile Features
General Feature: SMS, USSD, IMEI/PIN modify, Call minutes
restriction, Carrier select, BCCH, Reversal Polarity Network
Network Mode: NAT router or switch mode
Network Protocols: IP,TCP, UDP,TFTP, FTP, RTP, RTCP, ARP, RARP,ICMP Ping, NTP, SNTP, HTTP, DNS, PPPoE, DHCP
NAT traversal: Static NAT, STUN
Protocol
Protocol: SIP V2.0 RFC3261
SIP Characteristics: By port/device registration, Two183 mode
Configuration Management
Management: TFTP, HTTP, Sys log, CDR
Web GUI: Configuration, firmware upgrade, call status, CDR ,Configuration backup/restore
Hardware Specifications
Power Supply:AC100~240V 50/60HZ DC12V/2A External
Temperature: 0~40 Digree (Operation), -20~80 Digree (storage)
Humidity: 5% - 90% RH,
Power Consumption: 24W
Product Appearance: steel cabinet
Product Dimensions: 37(W) x 17.2(D) x 6.5 (H) cm
Product Net weight: 2.65kg
Carton box Dimensions: 41(W) x 25.5(D) x 15(H) mm
Gross weight: 3.5kg
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 maximum SIM card capacity?
- The gateway supports up to 64 SIM cards across 8 GSM ports, with an optional 4G SIM slot.
- Does the device support 4G networks?
- Yes, it comes with an optional 4G module that allows connection via 4G networks or mobile battery for mobility.
- Can the IMEI be changed automatically?
- Yes, the device features auto IMEI change, generation, and modification capabilities.
- What protocols are supported?
- It supports IPv4, TCP, UDP, PPPoE, DHCP, NAT, HTTP, FTP, and SIP V2.0 (RFC3261).
- How does the device prevent IP blocking?
- It uses Multi-SIM rotation, Human behavior simulation, BTS rotation, and proxy server encryption.
- Is there a built-in WiFi router?
- Yes, the device includes a built-in WiFi router that can directly connect to a modem.
- What are the supported voice codecs?
- Supported codecs include G.711a/u law, G.723.1, G.726, and G.729AB.
- What is the minimum order quantity?
- The minimum order quantity is 1 PC.
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