7 Best Voice Call APIs & SDKs [What is Voice Call API?]

“Hello there! How can I help you?” The most common term that every customer expects from brands. Not in days, not in hours, in minutes. 

Since there are various ways to contact businesses, interaction for queries, issues, and inquiries is covered, preferably through Voice Chat. This applies not only to enterprise communication but also to gaming, social media, academics, and more. The need for real-time voice calls became inevitable across industries.

What is Voice API?

API, in general, stands for Application Protocol Interface. This is a tool that is developed with a set of rules and protocols that software developers use to communicate or interact with applications. APIs act as the bridge between systems, creating a way to exchange data and functionality.

In a nutshell, Voice API allows applications to make, receive, and manage voice calls through the Internet. This eliminates the traditional method associated with PSTN.

Why Do You Need Voice API for Business?

Programmable voice API has become more close to businesses across the industries. An inevitable factor in customer satisfaction and collaboration. This is now extended to internal collaboration. 

Some of the considerations for enterprises to choose voice call app:

• Improved Customer Experience: Voice calls or voice chats online enable a real-time connection between customers and businesses. Also, supports more intuitive and human-like interaction to make the availability for customers with personalization.
• Increased Efficiency: Voice calling API enables high-quality connection and improves response time for call center solutions with advanced routing and analytics. This helps gather valuable customer insights and facilitate decision-making.

With automation, you can free up human agents by automating routine tasks like order placement, inquiries and appointment scheduling.

How to Choose a Secure Voice Chat SDK?

Like features, there are vast chat API providers you can surf on the internet. However, the right start ends with the right results. If you are overwhelmed with choosing the right SDK providers, we’ll guide you.

Find the list of key factors to consider when choosing the voice API.

1. Customization:

No matter the business model, customization options should be considered when choosing the voice chat SDK. For the personalized experience and cost-effective measures, customized voice API lets you decide what you want and pay for what you choose. 

To narrow down the providers, you can look for White-label voice API for the flexible solutions. 

2. Scalability and Reliability:

Choose a provider who can handle vast concurrent users without any lag or performance drop. Following customization, scalability is another crucial factor that supports the voice chat objective. 

Providers with solid enterprise infrastructure and multiple use case coverage are ideal for ensuring seamless connections for all enterprises.

3. The Ease of Integration and Resources

Make a list that supports and helps developers integrate. The checklist includes detailed documentation, SDKs in multiple programming languages, tutorials, dedicated development team service, and compatibility with tech stacks. 

In addition, look for the omnichannel communication features which the platform performs as a unified solution. This includes instant messaging, video conferencing and more.

4. Security Measures

Look for the encryption and other security features compliance to industry. Many self-hosted voice API providers offer custom security features that suit each use case. Some of the common security measures include end-to-end encryption, biometric authentication, and more.

Let’s make this journey even easier and more exciting for you by helping you choose the best audio chat API. 

Top 10 Best Voice API Providers for Enterprise Web & Apps

The Top 7 best Voice Call API & SDK Providers are MirrorFly, Vonage, Apphitect, ZEGOCLOUD, Twilio, Bandwidth and Sinch.

1. MirrorFly – White-label Voice API Platform with Unlimited Customization”

Making, receiving, and managing calls through the internet is way easier and more efficient with MirrorFly voice APIs. With this platform, enterprises can integrate CPaaS solutions with voice SDKs. 

As a business, you can enable complete in-app communication features for multiple use cases. Speaking about the voice chat features, you can enable advanced voice capabilities for call centers, which include SIP/VoIP calling, call routing and IVR.

2. Vonage- Voice SDKs for Better Customer Experience

Vonage offers voice API and SDKs for business communication that innovate voice chat experience. With the flexibility of its APIs, developers can easily integrate voice chat functions based on business requirements.

With the voice API, enterprises can manage call flow with features like conferencing, call recording and speech recognition.

3. Apphitect – UAE based white-lable chat and voice API solution

Apphitect is a self-hosted voice API provider with customization. With this enterprise messaging platform, voice call functionalities are integrated within a few lines of code for any tech stack. 

Apphitect offers encryption and high quality voice call for multiple use cases with ultra low latency.

4. ZEGOCLOUD – Intelligent voice processing API

For high-quality voice calls that are built with spatial audio, AI noise reduction, and intelligent voice processing for enterprise communication. This voice chat and messaging on and off this platform are encrypted.

Along with voice communication SDKs, this platform enables seamless interactions and real-time communication. Made with global infrastructure and routing optimization.

5. Twilio – Programmable voice API for businesses

Twilio offers a scalable voice API to customize the chat experience. This powerful voice platform enables voice communication to the platform with minimal effort. With the flexible solution, businesses can streamline their operations and customer interactions and create innovative voice-driven decisions.

With its voice SDK, businesses can experience best security practices, including emergency calling, phone number regulations, HIPAA compliance and private connections.

6. Bandwidth – Voice Calling API with Global IP 

For a better customer experience and the app’s functionality, integrating bandwidth will be the best option for voice chat capabilities. With its voice API enterprises, customer communication can be extended with inbound and outbound facilities without dedicated infrastructure. 

With high-end flexibility and global IP, this platform supports international calls from 60+ countries. However, there are some voice calling features that need to be upgraded for a better call experience.

7. Sinch – Best Voice Call API for seamless communication

Sinch is a leading voice call API provider that is well known for its high-quality seamless connection between peers. With the in-built scalability, businesses can customize based on their customer and business needs. 

With cross-platform support, enterprises can experience PSTN, VoIP, and SIP networks to target a wide range of customers.

Conclusion

Voice communication is an essential factor in customer interaction globally. If you want to provide a great experience, there are many API providers out there for brands and developers like you. 

This blog covered everything about what voice call API is, its features, and the top 10 providers for you to navigate smartly. To make your decision even more efficient, here is a pro tip: choosing white-label SDK solutions like MirrorFly and Apphitect will provide you with complete customization and flexibility over features.