VaxVoIP MS Windows SIP Phone SDK
Build SIP (Session Initiation Protocol) based VoIP softphones with ease.
Published by VaxSoft
Distributed by ComponentSource since 2025
Prices from: $ 2,587.20 Version: v8.6 Updated: Jul 27, 2025
VaxVoIP MS Windows SIP Phone SDK lets dvelopers build, customize, and distribute SIP (Session Initiation Protocol) based VoIP softphones with their own branding and GUI. The SDK provides straightforward sample code that accelerates development, streamlines SIP integration, and gives you full control over features and design. Whether for business, call centers, or custom deployments, you can quickly create professional-grade softphone applications with ease.

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VaxVoIP SIP Phone SDK Accelerates Softphone Development
Download easy-to-understand sample code to speed up development and simplify SIP integration. The SDK shortens the learning curve and helps you quickly create professional-grade VoIP softphone applications.
Supported Features
Works with Any SIP Based VoIP Server
VaxVoIP softphones are fully compatible with all SIP-based servers.
Secure Communication with TLS and SRTP
Ensure privacy and data protection with built-in support for TLS and SRTP...
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