Learn about how you can create your own VoIP SIP phone application for tablet PCs, smartphones or other portable devices with Ozeki VoIP SDK. Ozeki VoIP SDK supports all the basic and advanced telephony features, full list of them can be found here. Ozeki VoIP SDK supports all the codecs used in VoIP communications.

A WebRTC, SIP and VoIP library for C# and .NET. Designed for real-time communications apps.

PortSIP VoIP SDK is designed to streamline the development of audio, video, and instant messaging apps. It supports screen sharing, file sharing, and the exchange of voice and video messages. Fully compatible with WebRTC, iOS, Android, Windows, and macOS.

PortSIP VoIP SDK 具有直观灵活的 API，开发人员可以轻松、快速地实施基于 IP 的语音和视频应用，并满足统一通信、IoT/M2M、公共安全关键通信的需求，而无需任何复杂的集成或 VoIP 知识。

Zoiper SDK 2.0 – new and improved! This is our next-generation development kit, providing a complete SIP tools package, giving developers access to Zoiper’s core VoIP libraries. It enables engineers to integrate or create new applications with voice and video calling, instant messaging, presence and more. Get the Zoiper SDK 2.0 Documentation

Discover the features of VoIP SIP SDK for Windows: multi-line voice and video calls, conferencing, IM, SIP protocols. Enhance your apps today!

2025年3月16日 · Siprix VoIP SDK plugin for embedding voice-over-IP (VoIP) audio/video calls based on SIP/RTP protocols into Flutter applications. It contains native SIP client implementations for 5 platforms: Android, iOS, MacOS, Windows, Linux and unified API for all them.

Add seamless voice and video calling capabilities to your application or create a custom SIP softphone. Enjoy the benefits: Fully Functional Trial: Test the SDK with all features before committing. Outstanding Support: Get excellent technical assistance whenever you need it. Frequent Updates: Stay ahead with regular improvements and new features.

The Mizu Android SIP SDK (AJVoIP) is a compact and flexible SIP library for Android, allowing developers to quickly build Android VoIP solutions (such as a SIP Softphone) or add VoIP call capabilities into existing Android app.

The SIP/H.323/WebRTC protocol stack provides all necessary SIP, SDP and RTP functionality, such as encoding, sending, parsing and receiving SIP messages, managing SIP transactions and ensuring reliability. All of them are complete solutions, including everything you need to build a VoIP app or add VoIP capabilities into any existing project.