YX GoIP 4G LTE 16 Ports 16 SIM Slot Voice GSM Bulk Communication VoIP Gateway for Call and SMS

Product Overview

Core Key Features

1. 4G LTE Cat4 High-Speed Performance

• 4G LTE Cat4 (150Mbps DL/50Mbps UL), 5x faster than 2G
• SMS throughput: ~19,200/hour (1,200/port), no lag in peak hours
• Low-latency data transmission for real-time voice/SMS

2. VoLTE HD Voice & Ultra-Low Latency

• Native VoLTE support: crystal-clear HD voice, no static/echo
• Call latency <150ms (2G: 500+ms), smooth cross-border calls
• Supports G729/G711/iLBC codecs for adaptive quality

3. Global 4G Band Compatibility

• Quectel EC25/EG91 modules: Region Specific Global Coverage
• Covers Europe and America/Asia/Africa/Latin America/Australia
• EG25 model Avoids regional frequency restrictions, one device for global use

4. Industrial 4G Module Stability

• Original Quectel EC25/EG91 modules, 24/7 uninterrupted operation
• Strong anti-interference, stable 4G signal in weak coverage
• Longer lifespan than generic 4G chips

5. Dual Protocol Integration (SIP + HTTP API)

• SIP 2.0: compatible with softswitches/IP PBX for cross-border calls
• HTTP API: GET/POST for CRM/ERP/OTP platform integration
• SMPP optional for large-scale SMS aggregation

6. Smart 4G SIM Automation

• 4G-specific anti-block rules: call duration, SMS count, 4G signal loss
• IMEI customization, USSD balance query, PIN/PUK management
• Auto SIM switch for 4G signal fluctuations

7. Cloud Remote Management

• ETMS cloud platform: monitor/control 4G gateway globally
• Real-time 4G signal, call/SMS stats, SIM status
• Firmware upgrade & config backup remotely

8. Intelligent LED Alarm System

• 4G signal strength indicator (green/yellow/red)
• Real-time port/SIM status, fault alert
• Quick troubleshooting without software

9. Compact Rack-Mount Design

• 19-inch rack-mountable (saves data center space)
• DC 12V 5A stable power, low power consumption
• 0–50°C industrial temperature range

Step-by-Step Installation & Operation

1. Hardware Assembly

1. Insert 16 activated 4G SIM cards into dedicated slots.
2. Install 16 high-gain 4G LTE antennas for optimal signal.
3. Connect RJ45 Ethernet cable to WAN port (10/100Mbps).
4. Plug in DC 12V power adapter and power on.
5. Check LED

2. Web Login & 4G Network Setup

1. Set PC IP to 192.168.1.xxx (same subnet).
2. Visit http://192.168.1.10; default: root/root.
3. Navigate to Network → 4G Settings.
4. Select local 4G band.
5. Configure WAN: Static/DHCP/PPPoE.

3. VoLTE HD Voice Configuration

1. Go to Gateway → SIP Settings.
2. Enter softswitch IP/account/password.
3. Enable VoLTE and select HD codec.
4. Register status: Ready = connected.

4. Bulk SMS Setup

1. Navigate to SMS → Port Enable.
2. Activate 16 ports, set 4G SMS interval.
3. Configure HTTP API/SMPP for platform integration.

5. 4G SIM Automation

1. Open Automation → 4G Rules.
2. Enable anti-block: SMS count, call duration, signal loss.
3. Save and reboot.

6. Launch Bulk Voice/SMS

• Voice: 16-way concurrent HD calls.
• SMS: High-speed 4G bulk SMS delivery.

Ideal Application Scenarios

1. Cross-Border Call Centers

2. High-Speed Bulk SMS Marketing

3. Enterprise OTP & Verification

4. Telecom Operator Services

5. Logistics & IoT Alerts

6. Global Brand Campaigns

FAQ

Q1: What is GP 16-16?

Q2: What’s the advantage over 2G gateways?

Q3: Can it handle cross-border calls stably?

Q4: Is remote management supported?

Q5: Does it support OTP platforms?

Why Choose YX GP16-16?

1. 4G High-Speed Edge: 5x faster than 2G, no peak lag.
2. VoLTE HD Voice: Crystal-clear cross-border calls.
3. Global 4G Coverage: One device for all regions.
4. Industrial Stability: Quectel modules, 24/7 operation.
5. Cloud Intelligence: Remote control & analytics.
6. Future-Proof: 2G/3G/4G compatible, avoids 2G phase-out.

Call to Action

•  Free 4G band configuration
•  1-year warranty
•  Global shipping
•  Enterprise technical support

↓ Platform admin panel page display

Detailed Description:
Carrier-Grade VoIP Gateway for High-Density Communication
● 16 Simultaneous Channels: Manage 16 parallel voice/SMS streams via 16 SIM slots, ideal for call centers, telecom hubs, or mass notification systems.
● Multi-Network Flexibility: Supports LTE, GSM, CDMA, and WCDMA networks (confirm 4G frequency bands with account manager).
● SIP RFC3261 Compliance: Seamless integration with IP-PBX systems, STUN support, DTMF (RFC2833), and advanced call routing (LCR, IVR, CDR).

 Enterprise-Level Features & Security
● Crystal-Clear Voice Quality: Codecs include G729, G.711, iLBC + echo cancellation, VAD, and adaptive jitter buffer for flawless calls.
● SMPP 3.4 & API Integration: Send/receive SMS at scale alongside voice calls via HTTP, API, or EIMS protocols.
● Military-Grade Security: VPN, PPPoE, and static IP support with encrypted data transmission for secure operations.

Industrial-Grade Hardware & Scalability
● Dual Connectivity: 1x WAN port (RJ-45) + 1x USB console for hybrid network setups and remote management.
● Carrier-Class Uptime: Built for 24/7 operation (0-50°C temperature range) with LED status monitoring for all 16 channels.
● Global Compliance: Works with Windows, Linux, Android systems and 100-240VAC power input.

Future-Proof Telecom Infrastructure
● Advanced Telephony Features: Hotline calls, speed dial, white/blacklists, N-way conferencing, and mobile number portability.
● Free Software: Automate campaigns, track analytics, and manage multi-device clusters seamlessly.
● 12-Month Warranty: Backed by YXCALL’s technical support and detailed manuals.

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

↓ User Platform Interface Display of VoIP and SMS Gateway Software

↓ VoIP and SMS gateway connection demonstration

↓ Unscrew the power amplifier casing

↓ Unscrew the switch casing

About Us

YX International 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, YX International 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?

YX International 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?