Supports up to 512 SIMs — All in One Box

512 SIM SMS Gateway

Massive Scale. Zero Hassle

8 to 64 Ports • Bulk SMS & MMS • API Ready

One device to handle all your SMS tasks — plug, send & receive, scale.

Ejoin - Unlimited Possibilities

Ejoin 4G VoIP GSM Gateway

High-Capacity Sim Based 4G VoIP Solutions

  • Supports 8/16/32 Ports
  • 4G VoIP & SMS Communication
  • Perfect for Call Centers, Call termination, and Multi-site offices

Boost Your Business Communication Today!

Maximize Your Network with 4G Multi-IP Solutions

  • 16 SIM Slots: Build and Scale Multi-IP Networks effortlessly
  • Seamless IP Management: Simplify network management with ease
  • Advanced Proxy Support: SOCKS5, HTTP Proxy, and SSH Tunnel for optimal performance
EIMS

Bulk SMS Platform EIMS

Build Your Own SMS Platform | SMPP & HTTP Enable | Wholesale & Retail SMS Service

HIGH-DENSITY SMS GATEWAY HARDWARE

2G/3G/4G SMS Gateway Hardware

The ​ACOM6XX Seriesis a powerful SMS gateway hardware that supports ​8 to 64 SIM ports and can scale up to ​512 SIM cards, making it perfect for bulk SMS sending and receiving. With advanced software and seamless integration, it’s the ultimate solution for Mobile Marketing,Ticketing,Verification Codes,USSD Queries,Notifications and etc.

Available in 8 / 16 / 32 Ports – Supports up to 512 SIM Cards

GSM/3G/4G VoIP Gateway

The ​Ejointech ACOM5XX series VoIP Gateway offers a complete range of solutions, supporting ​8 to 32 ports and up to ​512 SIM cards. With advanced features, it seamlessly connects mobile and VoIP networks, making it perfect for businesses, multi-site organizations, and areas with limited landlines.

No Local SIM Needed — Control Everything from One Place

128/256/512 PORTS OPTIONAL

The ​Ejointech SimBank is a ​remote SIM card management device designed to ​work seamlessly with Gateway devices. With this solution, SIM cards are ​centrally managed on the SimBank, while Gateways can be deployed in different locations without requiring local SIM card insertion.

SEND & Receive BULK SMS ANYWHERE, ANYTIME

No more switching phones. No complicated software.
Just plug in and send messages — simple, fast, and reliable.

Power Your Systems with Enterprise-Grade SMS Connectivity

HTTP API & SMPP Integration

  • 🔗 Effortless Integration– Simple, developer-friendly API for fast setup with bots, systems or custom apps.
  • 🌍 Global SMS Gateway – Send/receive messages via secure, low-latency endpoints worldwide.
  • ⚙️ Flexible SMPP Protocol– Choose client/server mode for high-volume, carrier-grade sms messaging.
Everything You Need to Launch and Monitor SMS Campaigns, Scalable, Automated & Results-Driven

Powerful Bulk SMS Marketing

  • 🔄 Automated Bulk SMS & MMS – Save hours with scheduled sends and smart rules
  • 📇 Upload Contacts & Use Templates – Upload lists instantly + use templates for consistent branding
  • 🕒 Precision Timing – Schedule campaigns for optimal engagement (time zones matter!)
  • 🎯 Volume Control– Prevent over-messaging with send limits per campaign
  • 👥 Audience Segmentation– Target individuals, groups, or entire lists dynamically
  • 📊 Real-Time Analytics– Track delivery rates, opens, and failures with live reports.
  • ⚡ Lightning-Fast Sending – Deliver 326K SMS/hour without compromising reliability
Ready-to-use Tools for Effortless SMS Management

SMS RECEIVE ONLINE

  • 🔄 Auto-forward SMS to email– Never miss important messages
  • 🌐 Web-Based Inbox– Access & manage SMS remotely from any device
  • 📡 Real-Time SIM Monitoring– Check SIM status and activity live
  • Full Message Control– View, forward, or archive SMS seamlessly

Simplify Your Workflow – Try It Today!

all included, no extra fees

Completed Package of Software

  • 📡 ETMS Centralize and manage multiple SMS gateways from the cloud.
  • 💬 EIMS Full-featured SMS marketing platform with routing, templates, billing, and reports.
  • 📲 ESPS Remotely manage SIM cards across locations without direct connection to the modem.
Unified SMS & Voice VoIP Gateway for Global Communication

Powerful Built-in Software for Real-Time SMS Control

Manage devices, receive messages, forward SMS to email, run campaigns, and monitor SIMs — all from a single interface.

Ejointech use cases

Marketing & Engagement

Run bulk SMS campaigns, send SMS marketing & promotional offers, and manage loyalty programs.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 1.
Ejointech use cases

Verification & Authentication

Deliver and receive OTPs, verification codes, and fraud prevention alerts.

Rating of 1 means .
Rating of 4 means .
The rating of this product for "" is 2.
Ejointech use cases

Telecom & SIM Management

Optimize SMS termination, automate SIM top-ups, and enhance privacy with number masking.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.
Ejointech use cases

Finance & Utility Services

Enable banking alerts, billing reminders, and bulk USSD management.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.
Ejointech use cases

Business Communication

Automate notifications, appointment reminders, and enterprise messaging.

Rating of 1 means .
Rating of 4 means .
The rating of this product for "" is 4.
Ejointech use cases

Marketing & Engagement

Run bulk SMS campaigns, send SMS marketing & promotional offers, and manage loyalty programs.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 1.

Verification & Authentication

Deliver and receive OTPs, verification codes, and fraud prevention alerts.

Rating of 1 means .
Rating of 4 means .
The rating of this product for "" is 2.

Telecom & SIM Management

Optimize SMS termination, automate SIM top-ups, and enhance privacy with number masking.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Finance & Utility Services

Enable banking alerts, billing reminders, and bulk USSD management.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Business Communication

Automate notifications, appointment reminders, and enterprise messaging.

Rating of 1 means .
Rating of 4 means .
The rating of this product for "" is 4.
From the customer on alibaba
From the customer on alibaba
Really happy with this device and the special service at ejointech... device was better than our expectations, so I recommend it,,, we received at USA only 4 days,,, ordered on monday, received on thursday as agreed. we are buying another one.
— Leo Moreno-USA
From the customer on alibaba
Product works perfectly. All good quality, fast shipping and excellent service. Good communication. Price was bit higher than expected but. Happy customer :)
— Papitha Cader- New Zealand
From the customer on alibaba
Es mi segunda compra con Ejoin Technology; Realmente su profesionalidad y seriedad me dejan estupefacto!!!Acerca de sus productos puedo dar certificado que son de excelente calidad.Muchas felicitaciones a todo el equipo de trabajo, lo hacen todo muy bien!
— Jorge Oliver- Colombia
From the customer on alibaba
At the beginning there were troubles but Yan and the technical team have managed to walk me through and set up the machine. They have responded to all my questions and now I am buying more machines from them
— Ivan Grozev -Bulgaria

About us

EJOINTECH – Reliable Gateway Provider