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Trusted By Over 3500+, OTP, Notification & Marketing

Reliable Bulk SMS Service Provider & International Bulk
SMS Provider

Send high-volume SMS instantly, locally or globally. Connect with your customers anytime, anywhere with Siratel’s secure and reliable messaging platform.

SMS Solutions

A2P Messaging Infrastructure

OTP & 2FA SMS

Promotional Campaigns

Smart Routing & Redundancy

What is Bulk SMS?

Bulk SMS is like sending the same message to thousands of people at once — directly to their mobile phones.

Instead of typing one message and sending it one by one, businesses use bulk SMS to:

  • Share offers and discounts

  • Send reminders and alerts

  • Deliver OTPs and transaction updates

  • Run awareness or promotional campaigns

It’s fast, affordable, and almost every SMS is read within minutes.

Why Businesses Choose Siratel for SMS?

When it comes to connecting with customers quickly and reliably, Siratel stands out as the preferred choice. As a trusted bulk SMS service provider for India and a reliable international bulk SMS provider for businesses worldwide, we combine speed, accuracy, and affordability.

Our platform ensures seamless automation, detailed reporting, and unmatched uptime, making it easier than ever to engage your audience locally and globally.

  • Trusted bulk SMS service provider for domestic campaigns across India

  • Reliable international bulk SMS provider for global outreach

  • 99.99% uptime ensuring fast and consistent message delivery

  • Easy-to-use web dashboard and API integration for seamless automation

  • Detailed delivery reports and analytics to track every message

  • Affordable pricing for both local and international SMS campaigns

Comprehensive SMS Solutions for Every Business

Domestic Bulk SMS

  • Reach your customers across India instantly

  • Perfect for promotional SMS, alerts, OTPs, and notifications

  • Track delivery and engagement with real-time analytics

International Bulk SMS

  • Send messages to customers worldwide effortlessly

  • Compliant with country-specific regulations

  • Ideal for marketing campaigns, OTPs, and transactional alerts

API Integration & Automation

  • Connect Siratel with your website, app, or CRM

  • Automate SMS for orders, alerts, and notifications

  • Monitor performance with real-time analytics

Send texts seamlessly through a programmable SMS API

Enable SMS API inside your application. Our omnichannel gateway ensures that every message reaches your customers seamlessly, with secure and reliable delivery across all channels.

Automate your messaging with Siratel’s SMS API

Turn every interaction into a great experience using our global network and trusted expertise.

Two-Factor Authentication(2FA)

Protect your app or web platform with our easy-to-use 2FA APIs. Integrate seamlessly with SMS and voice-based authentication to safeguard your customers and strengthen security.

Alerts & Notifications

Keep customers engaged and reduce no-shows with SMS API messaging. Send automated alerts, reminders, and real-time updates delivered securely and reliably when it matters most.

Send SMS OTP

Use our simplified SMS API to send OTPs instantly with speed and security. Prevent fraudulent logins, verify users in seconds, and rely on fallback features that handle OTP delivery failures effectively.

Transactional SMS

Add messaging power to your CRM with SMS API. Automate transaction details, billing updates, and ensure customers receive timely, accurate, and secure payment reminders that improve satisfaction.

SMS to Email/Voice

Integrate SMS messaging API with voice and email, enabling customers and agents to engage effortlessly on any channel. Enjoy smooth communication across platforms, working together or at the same time.

Custom-made

Businesses run on different models and scenarios. Share your needs with us—we’ll craft a simple, adaptable SMS API solution tailored to your messaging requirements, perfect for industries like hospitality.

Features

Platform Features

Integrate SMS API into your application and deliver messages seamlessly. Our gateway ensures reliable, secure, and fast communication with your customers.

Protocol

HTTP, HTTPS, JSON, XML, SMPP, and Proprietary APIs

Unicode Support

Unicode SMS for any language, Flash SMS for instant alerts.

Black Listing

Keyword + recipient’s MSISDN in the text

Security Compliance

Messages are secured as per carrier and device support.

API Format

RESTful APIs supporting multiple formats—HTTPS, XML, and JSON

Short URL

Short URL creation enabled via SMPP, HTTP, and UI.

Smart Addons

Engage customers with surveys, polls, quizzes, forms, and promo code campaigns

Traceable report

Short URL and smart add-on clicks provide the application with traceable device insights.

Encode Content

Message contents with sensitive data are auto-encrypted, guaranteeing complete privacy from end to end.

Clean Informative Reports

The report details how many SMS were delivered within set time ranges: 5 seconds, 15 seconds, 30 seconds, and above.

OTP Generator & Validation API

One API generates and delivers OTPs to the user’s mobile, while another validates the received OTP.

Easiest DLT Templates Management

Download your template from the DLT portal, import it into our app, and you’re ready to go.

Why Choose us

Why choose Siratels?

99.99 % Guaranteed Delivery

Thanks to direct operator partnerships and Tier-1 routing, your message always arrives — fast and intact.

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24/7 Technical Operations Center

Our expert NOC and support engineers monitor, assist, and optimize in real-time — across all time zones.

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Direct and Reliable Global Coverage

No middlemen. No latency. Just direct, secure access to over 1000+ mobile networks across 190+ countries worldwide.

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Enterprise-Grade Security & Compliance

Fully GDPR-compliant with end-to-end encryption, secure authentication, and data localization options.

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Simple Steps to Send SMS Globally & Domestically

Step 1: Sign Up

>Quick registration and account verification to get started immediately.

Step 2: Upload Contacts

>Easily import local or international numbers.

Step 3: Compose & Send SMS

>Personalize your message and schedule campaigns for maximum impact.

Step 4: Track & Analyze

>Monitor delivery, open rates, and campaign performance with detailed analytics.

Trusted

Trusted by Businesses Worldwide

From fintech to healthcare, e-commerce to logistics — top enterprises trust Siratel to deliver billions of mission-critical messages across 190+ countries, every single month.

Join hundreds of businesses leveraging Siratel as their bulk SMS service provider and international bulk SMS provider.

Best CPaaS Platform​ in India | CPaaS Solution Provider with 2FA

Siratel SMS: Fast, Secure, and Built for Scale

10K

Active users

4.9+

User rating

100+

Trusted partners
Contact Us

Ready to Reach Customers Locally and Globally?

Contact us now and experience fast, reliable, and affordable SMS campaigns with Siratel. Boost engagement, drive sales, and connect with your audience worldwide.

Faq

Frequently asked questions - SMS

What is a bulk SMS service provider?

A bulk SMS service provider allows businesses to send high-volume SMS messages to multiple recipients at once. Siratel helps you reach customers quickly and reliably within India.

An international bulk SMS provider enables businesses to send messages globally, across multiple countries, ensuring delivery compliance with local regulations. Siratel supports worldwide SMS campaigns seamlessly.

Yes. Siratel supports both promotional SMS and transactional messages, including OTPs, alerts, notifications, and marketing campaigns, both domestically and internationally.

Siratel provides easy-to-use APIs and dashboard integration tools, allowing you to automate SMS campaigns and send messages directly from your existing platforms.

With Siratel, domestic messages are usually delivered within seconds, while international delivery times vary by country. Our platform provides real-time delivery reports for every message.

We offer Promotional SMS, Transactional SMS, and OTP delivery solutions with enterprise-grade reliability.

Siratel handles 1,700+ transactions per second (TPS) and delivers billions of messages monthly with 99.99% uptime.

Yes. You can configure a custom sender ID (subject to operator regulations) to display your brand name.

Yes, as per TRAI regulations in India, DLT registration is mandatory. Siratel provides full assistance during onboarding.

Absolutely. You can plan and automate SMS campaigns for specific dates and times. adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

You’ll have access to real-time delivery reports and detailed analytics to track open rates, delivery status, and campaign performance.

Yes. With our 2-way SMS service, you can receive responses, run polls, and engage customers interactively.

Yes. Siratel provides robust APIs and plug-ins for easy integration with your existing tools.

We operate on ISO 9001:2015 certified infrastructure with enterprise-grade security and Tier-1 operator connectivity.

Pricing depends on SMS type (transactional, promotional, OTP), volume, and route quality. Flexible plans are available for startups, SMEs, and enterprises.

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