WebRTC video call: A complete guide

Key takeaways

1. WebRTC enables real-time video, audio, and data sharing directly within browsers and apps, eliminating the need for downloads and reducing friction in customer interactions.

2. With scalable SDKs and APIs from Tata Communications Kaleyra™, businesses can quickly deploy secure, branded video experiences across web and mobile platforms.

3. WebRTC supports both one-to-one and group video calls, making it suitable for use cases like telemedicine, banking verification, and virtual collaboration.

4. Integration is flexible, with options for CRM systems, React Native apps, and ready-to-use widgets, ensuring seamless deployment.

5. By combining strong infrastructure with best practices, businesses can deliver reliable, secure, and engaging digital communication experiences at scale.

In today's digital-first world, instant and engaging communication has become a cornerstone of customer satisfaction. Whether it's healthcare consultations, banking verifications, remote interviews, or virtual shopping experiences, video calls with WebRTC technology are transforming how businesses connect with their audiences.

WebRTC, a browser-based technology, is at the heart of this evolution. This guide explores how businesses can leverage WebRTC video call capabilities and how Tata Communications Kaleyra™ enables fast, secure, and branded video experiences through its advanced developer tools.

What is WebRTC and how does it work?

WebRTC (Web Real-Time Communication) is an open-source framework that allows real-time audio, video, and data sharing directly between browsers and applications, without needing any external software or plugins.

The technology works by:

• Capturing media (camera/mic access)

• Establishing a peer-to-peer connection using ICE, STUN, and TURN servers

• Exchanging media and data securely with built-in encryption protocols

Because it's built directly into most browsers and mobile platforms, WebRTC for video calling offers a seamless, lightweight solution that works across devices. It is perfect for businesses looking to enhance customer experience without technical friction.

Key features of WebRTC for video calling

WebRTC video call SDK

With a strong WebRTC SDK, businesses can integrate video calling into web and mobile platforms quickly. Tata Communications Kaleyra™ offers robust SDKs for web, Android, iOS, and even smart glasses. These tools come with features like:

• Brand customisation (logo, colour, agent name)

• API-based session control

• REST APIs for integration

• Compatibility across browsers and operating systems

This makes deploying a WebRTC video chat feature straightforward, secure, and scalable.

WebRTC for peer-to-peer video calls

For secure and private interactions like telemedicine, customer verification, or recruitment interviews, WebRTC peer-to-peer video call functionality is vital. With Tata Communications Kaleyra™, businesses can set up encrypted and seamless one-to-one video calls using WebRTC, no software installation needed.

This peer-to-peer model ensures low latency and high video quality, which is critical for sensitive interactions.

WebRTC for group video calls

When it comes to collaboration, WebRTC group video call support is essential. Tata Communications Kaleyra™ allows up to 25 participants in a session with features such as:

• Screen sharing

• File transfer

• In-call messaging

• Whiteboard and virtual backgrounds

It's ideal for virtual classrooms, corporate meetings, product demos, and support calls where multiple stakeholders are involved.

Setting up WebRTC for one-to-one and group video calls

Deploying WebRTC video call features involves four key steps:

1. Choose your integration type: Tata Communications Kaleyra™ offers both SDKs and widgets for easy integration across websites, apps, and CRM systems.

2. Customise the experience: Set your brand colours, logos, and call interface to ensure brand consistency during video calls.

3. Implement key features: Enable live chat, file sharing, screen share, and more, depending on the use case.

4. Test with a WebRTC video call demo: Evaluate performance using Tata Communications Kaleyra™'s WebRTC video call demo, available via ready-to-deploy virtual rooms.

Tata Communications Kaleyra™ ensures your WebRTC for video calling setup is secure, compliant, and reliable across all major platforms.

Using WebRTC SDK for video calling

Tata Communications Kaleyra™'s WebRTC SDK allows you to embed advanced video communication features directly into your systems with minimal development effort.

The SDK provides:

• Plug-and-play video call widgets

• REST APIs for backend control

• Prebuilt modules for real-time communication

• Smart Glass SDK for immersive field experiences

Whether it's for finance, healthcare, HR, or retail, it's SDK enables your business to deliver quality WebRTC video chat experiences on any device.

WebRTC video call in react native: A quick overview

Mobile-first experiences are now a standard expectation. If your business app is built with React Native, you can still integrate a high-quality React Native WebRTC video call using mobile SDK.

With Tata Communications Kaleyra™:

• Your app rings with your business name and agent identity

• Customers can video chat without leaving your app

• No third-party downloads reduce friction and improve security

WebRTC video call demo: Real-world use cases

Looking to see how it works before committing? Tata Communications Kaleyra™ offers a WebRTC video call demo that simulates real-world scenarios to show off its capabilities.

Here are a few industry-specific examples that you can implement after assessing capabilities with a demo:

• Banking: Start video KYC calls via secure, one-click browser links.

• Insurance: Enable policyholders to video-call from accident scenes for instant claims support.

• Healthcare: Host teleconsultations securely with access to screen sharing and whiteboarding.

• Retail: Allow shoppers to video-call product experts and view items in real time.

• Education: Create interactive learning environments with group video calling and collaboration tools.

These demos show how WebRTC for video calling can enhance user experiences across verticals while preserving security and brand identity.

Challenges and best practices for WebRTC integration

Despite its flexibility, deploying WebRTC video chat can come with a few challenges. These include:

Common challenges:

• Network compatibility: Users on different firewalls or low-speed networks can affect call quality.

• Browser support: While modern browsers support WebRTC, older versions may not.

• Security compliance: For industries like healthcare or finance, regulatory compliance is key.

Best practices:

• Always test with a WebRTC video call demo before deployment.

• Partner with an experienced provider like Tata Communications Kaleyra™ for peace of mind.

• Ensure mobile compatibility for React Native WebRTC video call use cases.

Tata Communications Kaleyra™ Video API Solutions solves many of these issues out of the box, offering scalable infrastructure, enterprise-grade security, and customisation capabilities that minimise development friction and maximise reliability.

Conclusion: Simplify communication with Tata Communications Kaleyra™'s WebRTC video solutions

Whether you're planning to launch a one-to-one video call using WebRTC or looking for a WebRTC group video call functionality, Tata Communications Kaleyra™ delivers everything your business needs to succeed. With flexible SDKs, ready-made widgets, and secure, scalable infrastructure, Tata Communications Kaleyra™ makes integrating WebRTC for video calling seamless and future-proof.

From finance to education, from mobile apps to smart glasses, Tata Communications Kaleyra™ empowers businesses to offer truly human digital experiences using the power of WebRTC.

Explore how Tata Communications Kaleyra™ can help you unlock the full potential of WebRTC video call technology. Get Started