Detailed Description:

Smart SIM Hybrid Technology
● 8 Ports × 4 SIM Slots: Each of 8 ports manages 4 SIM cards (32 total) with automatic/manual switching—maximize uptime and reduce hardware costs.
● 2G GSM Global Bands: Full-frequency M26 module supports 850/900/1800/1900MHz (excludes USA, Canada, Australia, Japan, South Korea).
● 8 Concurrent Operations: Handle 8 simultaneous calls/SMS transmissions with dynamic SIM routing.

Enterprise Telephony & SMS
● Intelligent SIM Switching: Rotate SIMs automatically during failures or manually prioritize lines for load balancing.
● SIP RFC3261 Compliance: DTMF relay (RFC2833/SIP info), LCR routing, IVR customization, and bulk SMS via SMPP3.4/HTTP/API.
● Crystal-Clear Voice: G.711/G.729/iLBC codecs, echo cancellation, and adaptive jitter buffer.

Robust Hardware & Control
● Centralized Management: Monitor all 32 SIMs via 1× WAN Ethernet + 1× USB console with LED status indicators.
● Always-On Reliability: 0–50°C operating range, 100-240VAC power, and cross-platform (Win/Linux/Android) support.
● Security Features: White/black lists, VPN support, and encrypted call/SMS protocols.

↓ Platform admin panel page display



Perfect For:
● Call centers & telemarketing
● Bulk SMS alerts & OTP services
● Remote teams & IoT/M2M solutions
● Cost-effective VoIP-to-GSM bridging

How It Works:
1. Connect via Ethernet/USB.
2. Load 32 SIMs.
3. Launch via API or built-in web server
Plug-and-play setup | reliability | Enterprise-grade security
Act Now & Transform Your Workflow!

↓ YX Gateway main page to set Gateway display, For other uses, please refer to the instruction manual

Need Assistance? Contact customer service (9:00 AM - 6:00 PM GMT+8) for product images or queries!
Need high-volume communication? This gateway is your all-in-one solution. 
Whatsapp: +8615220722893
Emai: yx@yxinternet.com
Telegram: @YXwendy
Teams: yuexun@yx19999.net

↓ VoIP and SMS gateway connection demonstration

About Us

YxInternet is a professional supplier specializing in consumer electronics, smart devices, and lifestyle products. With years of experience in global trade and a strong supply chain network, we provide businesses and end-users with reliable products at factory-direct prices.

Our mission is to bridge quality manufacturing with global buyers, making cross-border sourcing easier, faster, and more transparent. From product selection to quality control, and from fast delivery to after-sales support, YxInternet ensures every order meets high expectations.

        

Why Choose Us

• Extensive Product Range：From smart electronics to innovative gadgets, we cover a wide range of categories to meet various market demands.
• Direct-from-Manufacturer Pricing：We work directly with reliable factories, ensuring competitive wholesale prices with no hidden costs.
• Strict Quality Control：Every product goes through multi-level quality checks, from factory audits to pre-shipment inspections, guaranteeing what you receive matches your expectations.
• Efficient Logistics Network：With global shipping partnerships, we offer fast and trackable delivery to over 100 countries, keeping your orders on time.
• Dedicated Customer Service：Our professional team is ready to support you before, during, and after your purchase, ensuring your sourcing experience is smooth and hassle-free.

FAQ

1.Who are we?

YxInternet is a trusted supplier offering consumer electronics, smart devices, connecting global buyers directly with high-quality factories.

2.How can we guarantee quality?

Factory audits to verify production capabilities

Product sampling and testing

Pre-shipment quality checks to confirm product specifications

3.What can you buy from us?

We offer a wide range of products, including:

SMS Modem

SMS Dongle

Voip gateway

SMS gateway
eSIM Gateway
IP Phone
Modules/Accessories

Customized products for bulk orders

4.Why should you buy from us instead of other suppliers?

Direct factory pricing with no middleman markup

Comprehensive quality control from production to delivery

Flexible order solutions for both retail and wholesale

Fast global shipping and reliable logistics

Dedicated after-sales support to resolve any issues

5.What services can we provide?

Product sourcing and customization

OEM and private label support

Product quality inspections

Global shipping coordination

After-sales support and warranty services

1、Overview
VoIP GSM gateway (GoIP gateway) is a device that can reduce the cost of calling mobile networks from fixed telephone lines. It can route directly between IP, digital, analog, and mobile networks. GoIP gateways are increasingly being used by telephone operators to connect IP calls to mobile networks. In areas where fixed line services are unavailable or much more expensive than mobile costs, GoIP gateways are an irreplaceable alternative.

The following figure shows a basic topology of GP Gateway usage.

2、Product Brief
YX series GP Gateway is a multi-functional and high performance product, which is designed with advanced embedded technology. YX series is able to process traditional voice call service and internet data service. perfectly support G729a/b/e、G723.1、G.711 a/u law and iLBC codecs at the same time.
YX series GP Gateway please check the following table about the difference:

3、Appearance

                  

● 4/8/16/32 Antennas
● 1 USB Serial Port (Baudrate 115200)
● 1 Network Interface (RJ45)
● 1 Power Interface (DC 12V 3A/5A/7.5A/8A)
● 1 Power light
● 1 Reset Button
● 4/8/16/32/64/128/256/512 SIM card slots
● 4/8/16/32/64/128/256/512 LED lights

4、Special Features

● Support G729a/b/e,G723.1,G.711 A/U law, iLBC auto-selecting

● BO(Bandwidth Optimization)

● Proxy Encryption Solution for IP Block

● Support SIM Bank

● VPN(pptp)

● SIM Card Rotating

     ◆ SIM card check and switch rules:

        ◇ Accumulated Call Duration

        ◇ Accumulated Connected Calls

        ◇ Accumulated Calls

        ◇ Consecutive Failed Calls

        ◇ Consecutive No-Alert Calls

        ◇ Consecutive No-Answer Calls

        ◇ Consecutive No Carrier Calls

        ◇ Consecutive Short-Duration Calls

        ◇ Consecutive Fast-Alerting Calls Checking

        ◇ Consecutive Fast-Answer Calls CheckingGSM/CDMA/WCDMA/4G(LTE) VoIP/SMS Gateway

        ◇ Consecutive GSM Release Cause Checking

        ◇ Accumulated SMS Count Checking

        ◇ Accumulated Failed SMS Count Checking

        ◇ Consecutive Failed SMS Count Checking

● Station intelligent switching(By switching rules)

● ERMS(Easement Remote Management System)

● Port Inter-Calling

● Fake Ring back

● FAS shield

● Call waiting

● Call Duration Limitation for SIM Card/Single

● Dial Plan/Prefix Inward Translation/Intelligent Routing

● Web Browser: Firefox/Chrome /IE/Opera

5、Specification

6、Mobile Features 

● SMS Send, Receive and Forward(GSM/SIP/HTTP)

● SMS Inbox

● AT Command , USSD

● SMS Format: PDU/TXT

● PIN Code Management

● CDMA Delay Answer

● GSM Polarity Reversal

● Carrier Selection

● Caller ID Hidden(need SIM Card support)

7、Maintenance and Management 

● Multi-language Interface

● USB Serial COM

● Configuration Backup and Restore

● Support HTTP/TFTP Upgrade

● Call statistics: ASR,ACD,PDD

● WEB Remote Management System

● SMPP support

● HTTP Command

▼The following pictures are demo of the platform's interface setup and operation

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8、FAQ

 
Q4. Does GOIP, MOIP, or SMS modem support functions such as MMS, picture SMS, voice SMS, video calls, etc?