Fast, reliable, and affordable messaging solutions built for enterprise growth. Send bulk SMS, voice calls, and WhatsApp messages at scale.
A dedicated bulk SMS provider helping businesses communicate effectively with their customers. With cutting-edge technology and a customer-first philosophy, we ensure messages are delivered fast, securely, and at competitive rates.
High-throughput infrastructure delivers messages in milliseconds to any operator.
Competitive rates starting from 0.30 BDT with volume discounts for any business size.
Clean, fully documented API for seamless integration with WordPress, Laravel, and more.
Automatic Do Not Disturb compliance enforced across all operators, every send.
Live delivery tracking and full campaign analytics in one clear dashboard.
Dedicated support team available around the clock to keep your campaigns running.
Send SMS to over 190 countries with reliable international gateway coverage.
Industry-grade encryption protecting every message and every byte of your data.
Fast delivery every time. The platform has been consistently reliable for all our promotional campaigns. Couldn't ask for more.
The customer support team is always responsive and genuinely helpful — exactly what a growing business needs from a partner.
Our infrastructure guarantees messages arrive on time, every time — 99.9% uptime with enterprise-grade routing across all operators.
Round-the-clock support and personalised solutions tailored precisely to your communication goals and business needs.
A continuously evolving platform with real-time analytics, powerful APIs, and features designed to grow with your business.
No hidden fees. No long-term contracts. Pay only for what you send.
Our mission is to empower businesses of all sizes to communicate effectively through reliable and affordable bulk SMS solutions. We envision a world where instant, secure communication drives growth and success for every enterprise.
With over a decade of experience in telecommunications, 4rtech has served thousands of clients across diverse sectors. Our specialists continuously innovate to provide cutting-edge technology and unparalleled client support.

Reach customers with targeted messages to boost sales, announce offers, and strengthen brand awareness across all demographics.

Send critical alerts, order confirmations, and account notifications to customers instantly with the highest security standards.

Secure your applications with one-time passwords and integrate SMS via our robust, fully documented REST API.

Deliver messages with a personal touch using automated voice calls broadcast to your entire customer base simultaneously.

Engage customers on WhatsApp with rich media content, interactive messages, and two-way campaign workflows.
Attendance alerts, exam results, fee reminders, and event announcements.
Promotional campaigns, appointment reminders, and customer re-engagement.
Order confirmations, shipping updates, OTP verification, and sale alerts.
Appointment reminders, health advisories, prescription alerts, and follow-ups.
Transaction notifications, OTP codes, fraud alerts, and balance updates.
Shipment tracking, delivery confirmations, driver dispatch, and pickup alerts.
Ready to grow your business communication? Our team is one message away.