Yeastar Linkus SDK Introduction
Yeastar P-Series Cloud Edition provides Linkus Software Development Kit (SDK) for custom development, enabling developers to integrate the SDK into third-party projects to add calling, CDR, and more Linkus UC Clients' functionalities to third-party applications.
Requirements
Make sure that your PBX server meets the following requirements:
- Firmware: 84.12.0.32 or later
- Plan: Ultimate Plan (UP)
Architecture

Supported platforms
Linkus SDK supports cross-platform development and can be integrated with existing applications, web pages, or platforms to streamline the development process and quickly implement call functionalities.
| Platform | Resource Link |
|---|---|
| Android | |
| iOS | |
| macOS | |
| Windows |
|
| Web |
|
Key features
Refer to the table below for the key features supported by Linkus SDK for different platforms.
| Android | iOS | macOS | Windows | Web | ||
|---|---|---|---|---|---|---|
| Basic Call Features | 1:1 Voice Call | |||||
| Make a Second Call | ||||||
| Call Transfer (Attended & Blind) | ||||||
| Call Hold & Resume | ||||||
| Call Mute | ||||||
| Call Recording | ||||||
| Call Waiting | ||||||
| Advanced Call Features | Multi-party Call (Up to 5 parties) | |||||
| Conference Call (Up to 9 parties) | ||||||
| Audio Codec Selection | ||||||
| Audio Input Device Selection | ||||||
| Call Quality Monitoring | ||||||
| CDR Query and Management | Query CDR Record | |||||
| Delete CDR Record | ||||||
| Query the Number of Missed Calls | ||||||
| System Push Notifications | Incoming Call Push Notification | |||||
| Missed Call Push Notification | ||||||