RCS MESSAGING
The Complete Guide to RCS Business Messaging in 2026
Rich Communication Services (RCS) is replacing traditional SMS as the default messaging standard on Android devices. With support for rich media, interactive buttons, carousels, and verified sender branding, RCS enables businesses to create app-like experiences directly within the native messaging app.
This guide covers how RCS works, which carriers and devices support it in India, how to send your first RCS message via API, and what engagement metrics businesses are seeing compared to plain-text SMS.
SMS Marketing & Strategy
How to plan, execute, and measure SMS campaigns that drive results.
10 SMS Campaign Strategies That Drive 45% Conversion Rates
Proven tactics used by e-commerce brands to turn SMS subscribers into repeat buyers through personalized messaging.
SMS Timing: When to Send Messages for Maximum Open Rates
Data-backed analysis of the best days and times to send promotional, transactional, and reminder messages in India.
Building an SMS Subscriber List: Opt-in Best Practices
Compliant strategies to grow your SMS audience through web forms, keywords, QR codes, and checkout flows.
SMS vs Email: Which Channel Wins for Transactional Alerts?
A comparison of delivery speed, open rates, and customer preference for OTPs, order updates, and payment reminders.
WHATSAPP BUSINESS
How to Launch Your WhatsApp Business API Channel
The WhatsApp Business API allows businesses to send template messages, handle customer inquiries with chatbots, share rich media, and automate notifications at scale. Unlike the WhatsApp Business App, the API is built for programmatic access and high-volume messaging.
This guide walks through account setup with a BSP, template creation and approval by Meta, webhook configuration for incoming messages, and best practices for maintaining high quality ratings.
Developer Guides & API Tutorials
Step-by-step technical guides for integrating SpringEdge APIs into your applications.
Getting Started with the SpringEdge SMS API in 5 Minutes
A quickstart tutorial covering authentication, sending your first SMS, and handling delivery reports with cURL and Python.
Building a Multi-Channel Notification System
Architecture guide for sending SMS, WhatsApp, and voice alerts from a single backend using our unified API.
Webhook Best Practices: Processing Delivery Reports
How to configure, secure, and scale webhook endpoints to handle millions of delivery status callbacks reliably.
Integrating OTP Verification into Your Sign-Up Flow
Implement secure phone number verification with automatic retries, rate limiting, and fallback channels.
VOICE COMMUNICATION
Voice Broadcasting: The Underused Channel That Outperforms Email
Automated voice calls deliver some of the highest engagement rates among all communication channels. They are particularly effective for payment reminders, appointment confirmations, emergency alerts, and survey collection — reaching customers who don't read SMS or email.
This article covers how to set up voice campaigns with text-to-speech, design IVR menus for call routing, schedule calls across time zones, and measure pickup rates and DTMF responses using the SpringEdge Voice API.
Compliance & Industry Insights
Regulatory guides and market trends for business messaging in India and internationally.
DLT Registration in India: A Complete Compliance Guide
Step-by-step walkthrough of TRAI's DLT mandates — entity registration, header approval, template submission, and content scrubbing rules for all Indian telecom operators.
International SMS Regulations Every Business Should Know
Country-by-country overview of sender ID requirements, opt-in laws, quiet hours, and content restrictions for global messaging campaigns.
The State of Business Messaging: Trends for 2026
Industry data on CPaaS growth, RCS adoption rates, conversational commerce, AI-powered messaging, and what it means for your communication strategy.