Calling APIs
PortSIP VoIP SDK
PortSIP VoIP SDK is a modern, production-ready SIP client framework designed for building high-performance audio and video calling applications. It supports all major operating systems, enabling rapid time-to-market for applications on:
iOS
Android
macOS
Windows
WebRTC (Browsers)
This broad platform coverage allows developers and service providers to deliver consistent, high-quality communication experiences across desktop, mobile, and web environments.
Unified Communications Capabilities
The PortSIP VoIP SDK enables the development of full-featured Unified Communications applications, including:
Audio and video calling
Instant messaging (IM)
Screen sharing
File transfer
Picture messaging
Voice and video messages
By providing these capabilities out of the box, the SDK significantly reduces development complexity and accelerates the delivery of enterprise-grade UC solutions.
Trusted by Industry Leaders
The PortSIP VoIP SDK is trusted and used by many well-known global enterprises, including (but not limited to):
Siemens
T-Mobile
Telstra
Netflix
Qualcomm
HPE
Nextiva
Keysight
Philips
Panasonic
Fujitsu
Dialogic
These organizations rely on PortSIP to power mission-critical communication workflows at scale.
Included with PortSIP PBX — No Extra Cost
When you purchase a PortSIP PBX license, the PortSIP VoIP SDK is included at no additional cost.
This provides a true all-in-one Unified Communications platform, allowing you to:
Build custom client applications
Deploy UCaaS, CCaaS, or CPaaS solutions
Reduce licensing complexity and overall cost
Achieve the shortest possible time-to-market
Obtain the SDK
You can download the PortSIP VoIP SDK directly from the PortSIP website. The SDK package includes ready-to-run sample projects for multiple operating systems, making it easy to explore features and start development immediately.
For technical support or integration assistance, you can submit a support ticket directly to PortSIP.
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