Duotech Solutions - Enterprise Communication Infrastructure & Software Development Company Noida

Duotech Support

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Hi there! ๐Ÿ‘‹
What are you looking for?

Duotech Support

Typically replies instantly

Hi there! ๐Ÿ‘‹
What are you looking for?

Bulk SMS · WhatsApp · IVR · Voice OBD

Enterprise Communication Infrastructure

High-throughput messaging, intelligent voice systems, and API-first integration โ€” engineered for mission-critical delivery at scale.

1B+Messages monthly
99.9%Uptime SLA
500+Enterprise clients
/api/v1/send
Statusdelivered
ChannelWhatsApp
Latency124ms
CampaignQ3 Broadcast
Throughput18,420 req/s

Duotech powers our mission-critical messaging infrastructure. Their WhatsApp API integration handles over 2 million conversations monthly with zero downtime.

โ€” Vikram Sethi VP Engineering, Bangalore Fintech Labs
DLT Registered ISO 27001 SOC 2 Type II HIPAA Compliant GDPR Compliant GST Registered
Trusted by engineering teams across
Banking Fintech E-Commerce Healthcare Logistics EdTech Real Estate Travel
The Duotech Advantage

Why Duotech Solutions

Built for scale. Trusted for reliability. Engineered for enterprises that cannot afford downtime.

24ร—7 Technical Support

Round-the-clock expert assistance to keep your campaigns running and issues resolved instantly.

DLT & TRAI Compliant

Fully compliant messaging infrastructure registered and certified to meet all Indian telecom regulations.

Instant API Integration

Developer-friendly REST APIs with comprehensive SDKs for rapid integration into any stack.

System Integrity

Built for scale. Trusted by enterprises operating at capacity.

We maintain mission-critical messaging infrastructure under zero-downtime mandates. Our architecture scales with your data footprint across every channel.

99.9% Verified

Contractual Uptime SLA

Automated failovers across isolated zones keep your campaigns active 24/7.

1B+

Messages Processed Monthly

High-throughput delivery across SMS, WhatsApp, and voice channels globally.

500+

Enterprise Clients

Powering communication for banks, fintechs, e-commerce, and healthcare.

Start Your Deployment

Get a personalized consultation and architecture review for your communication stack.

Contact Sales
Capabilities

Integrated Solution Architectures

We engineer high-performance digital ecosystems designed to streamline enterprise communication and catalyze business growth.
01 / Messaging

Bulk SMS
Engines

High-throughput delivery systems capable of processing millions of requests with sub-second latency and global reach.

02 / Social

WhatsApp
Enterprise

Seamless API integration for conversational commerce, automated support, and high-fidelity customer engagement.

03 / Voice

Smart IVR
Solutions

Intelligent voice response systems featuring natural language processing and dynamic routing for elite caller experiences.

04 / Voice

Voice
OBD

Automated outbound voice campaigns with intelligent routing, real-time analytics, and high-delivery infrastructure.

05 / Code

Digital
Product Dev

Architecting robust, scalable web applications using modern stacks optimized for performance and aesthetic impact.

06 / Intelligence

Elite CRM
Frameworks

Custom relationship management tools designed to synthesize data into actionable insights and operational efficiency.

Domain Expertise

Industries We Serve

Tailored communication infrastructure for every sector โ€” from healthcare compliance to e-commerce scale.

Build & Integrate

Developer-First API & Integrations

Enterprise-grade REST APIs, real-time webhooks, and pre-built integrations designed for seamless engineering workflows.

API Capabilities

RESTful APIs

Clean JSON endpoints for SMS, WhatsApp, and Voice โ€” built on predictable, resource-oriented URLs.

Webhook Callbacks

Real-time delivery reports, read receipts, and status updates pushed directly to your endpoint.

Multi-Language SDKs

Official client libraries for PHP, Python, Node.js, Java, and cURL โ€” ship faster with less boilerplate.

Comprehensive Docs

Detailed API reference with copy-paste code examples, sandbox environment, and Postman collections.

Explore API Documentation

CRM Integrations

Native connectors for Salesforce, HubSpot, Zoho, and custom CRM pipelines.

Shopify & WooCommerce

Transactional alerts, order confirmations, and abandoned cart recovery via messaging.

Custom API Integration

Purpose-built middleware and webhook orchestration for enterprise-grade workflows.

500+ API Endpoints

Comprehensive access across messaging, voice, analytics, billing, and account management.

// WHAT WE BUILD
WEB

Web Applications

Custom websites and web apps built with modern frameworks. Fast, secure, and optimized for search engines.

Next.js TypeScript
ANDROID

Android Apps

Native Android applications that run smoothly on all devices. Built with the latest tools and best practices.

Kotlin Jetpack Compose
iOS

iOS Apps

Premium iOS applications designed for iPhone and iPad. Clean, fast, and Apple-ecosystem ready.

SwiftUI Swift
How It Works

From Discovery to Deployment

Four stages to transform your communication infrastructure โ€” from audit to live deployment with full enterprise support.

01

Discovery & Audit

We analyze your current messaging and voice infrastructure, identifying bottlenecks and mapping your requirements to the right technology stack.

Learn More
02

Solution Design

Architects design your custom communication framework โ€” selecting the optimal mix of Bulk SMS, WhatsApp API, IVR, and Voice OBD channels.

Bulk SMS
03

Integration & Build

Our engineering team integrates APIs, configures routing logic, and deploys your solution into a staging environment for rigorous validation.

WhatsApp API
04

Deploy & Monitor

Production deployment with real-time monitoring, automated failover, and 24/7 support to ensure 99.9% uptime from day one.

IVR & Voice
Global Reach

Service Coverage

PAN India presence with international SMS routes to 190+ countries. Direct operator connections ensure maximum delivery rates.

India

PAN India

Full PAN India coverage with direct connections to all major telecom operators. Local routing for highest delivery rates.

UAE / Middle East

Dubai ยท Abu Dhabi ยท Sharjah

Established routes across the UAE and broader Middle East region. Dedicated corridors for enterprise-grade delivery.

Southeast Asia

Singapore ยท Malaysia ยท Indonesia

Expanding footprint across Southeast Asian markets. Reliable messaging routes to Singapore, Malaysia, and Indonesia.

Global

190+ Countries

International SMS routes spanning 190+ countries. Single API integration for worldwide messaging reach.

Resources

Latest from Our Blog

Insights on Bulk SMS, WhatsApp API, Cloud Telephony & more

DLT Compliance Jun 2026

Complete Guide to DLT Registration in India

Everything you need to know about TRAI's DLT platform for bulk SMS

Read More
Bulk SMS May 2026

What is Bulk SMS? A Complete Guide for Indian Businesses

Learn how bulk SMS works, DLT requirements, and how to get started

Read More
Pricing Guide Apr 2026

Bulk SMS Pricing in India: Complete Cost Guide

Understand SMS pricing factors, volume discounts, and hidden costs

Read More
04

Product Suite

High-precision tools engineered for mission-critical business excellence.

CRM
Core

A unified relationship management platform. Orchestrate lead acquisition, pipeline intelligence, and behavioral analytics in a single, immersive interface.

Explore CRM

Voice
OBD

Automated outbound dialing with intelligent routing, real-time campaign analytics, and carrier-grade delivery infrastructure.

View OBD

IVR
Systems

Intelligent voice response with NLP routing, automated call flows, and deep analytics for enterprise-grade telephony operations.

Explore IVR
Knowledge Base

Frequently Asked Questions

Everything you need to know about Bulk SMS, WhatsApp API, IVR, Voice OBD, DLT registration, and our platform.

Bulk SMS is a service that allows businesses to send large volumes of text messages to multiple recipients simultaneously. It is commonly used for promotional campaigns, transactional alerts, OTP verification, and customer notifications.

Yes, as per TRAI regulations, DLT (Distributed Ledger Technology) registration is mandatory for all businesses sending Bulk SMS in India. You must register your business, SMS headers, and content templates on the DLT platform before sending messages.

PE ID stands for Principal Entity ID. It is a unique 15-digit registration number assigned to your business on the DLT platform after successful registration. You need this ID to register SMS headers and templates.

The WhatsApp Business API enables businesses to send and receive WhatsApp messages programmatically. It supports automated notifications, customer support conversations, and marketing campaigns with rich media. Unlike the WhatsApp Business App, the API allows integration with your CRM and automation tools.

Cloud IVR (Interactive Voice Response) is a telephony system hosted on the cloud that automates incoming call handling. It uses voice menus and keypad inputs to direct callers to the right department without human intervention.

Transactional SMS are triggered by user actions (e.g., OTP, order confirmation, bank alerts) and can be sent 24x7. Promotional SMS are marketing messages restricted to 9 AM to 9 PM by TRAI regulations. Transactional messages have higher delivery priority.

DLT template approval typically takes 2-3 business days for standard templates. Complex templates or those with URL shorteners may take longer. We assist with template creation to ensure faster approval.

Yes, we provide a RESTful SMS API with support for multiple programming languages including PHP, Python, Node.js, Java, and cURL. The API supports bulk sending, OTP generation, delivery reports, and webhook callbacks.

Yes, our platform offers native integrations with popular CRMs like Salesforce, HubSpot, and Microsoft Dynamics. We also provide custom webhooks and REST APIs for bespoke integrations.

OTP SMS can be sent using our Transactional SMS API. You can generate a random OTP on your server and send it through our API endpoints. We support features like resend OTP, expiry timers, and delivery confirmation.

RCS (Rich Communication Services) is the evolution of SMS that supports rich media, interactive buttons, read receipts, and typing indicators. Unlike plain SMS, RCS messages look like chat apps and offer higher engagement rates.

Voice OBD (Outbound Dialing) allows automated voice calls to large customer lists. Benefits include personalized voice messages, real-time delivery tracking, interactive call flows, and integration with CRM data.

Yes, we are fully compliant with TRAI regulations for Bulk SMS, including DLT registration, header and template registration, and DND compliance. Our platform automatically filters DND registered numbers for promotional campaigns.

Yes, our dashboard allows you to schedule SMS campaigns for future dates and times. You can also set recurring schedules for periodic messages like daily alerts or weekly newsletters.

A single SMS has a 160-character limit for standard GSM encoding. Messages exceeding 160 characters are automatically split into multiple segments. Unicode messages (e.g., Hindi, Arabic) have a 70-character limit per SMS.

We use end-to-end encryption for all API calls, multi-factor authentication for dashboard access, SOC 2 Type II certified infrastructure, and adhere to GDPR, HIPAA, and local data residency laws.

We guarantee 99.9% uptime for our messaging and voice services, backed by our SLA. Our infrastructure uses redundant servers, failover systems, and real-time monitoring to ensure continuous availability.

Yes, every message sent through our platform generates a detailed delivery report including delivered, failed, pending, and undelivered status. Reports are available in the dashboard and can be fetched via API or webhook callbacks.

Yes, we support international SMS delivery to 190+ countries through direct operator connections. Our platform automatically routes messages based on the destination country for optimal delivery.

The WhatsApp Business App is a free mobile app for small businesses with limited automation. The WhatsApp Business API is designed for medium to large enterprises and supports programmatic messaging, multi-agent systems, CRM integration, and high-volume throughput.

Yes, we provide toll-free number services with IVR integration. You can set up a toll-free number for customer support with IVR menus, call routing, and call recording capabilities.

We support 6-character custom sender IDs for promotional SMS (e.g., BRANDX), numeric sender IDs for transactional/OTP SMS (e.g., 123456), and alphanumeric sender IDs for service SMS. All sender IDs must be registered on the DLT platform.

Getting started is simple: contact our sales team, complete the onboarding and DLT registration process, integrate our API or use our dashboard, and start sending messages. Most clients go live within 2-3 business days.

Enterprise Readiness

Ready to Scale Your Communication?

Connect with our team to deploy high-volume messaging, voice, and API infrastructure tailored to your enterprise needs.