VoIP SIP SDK for Flutter allows you to develop cross-platform SIP softphone for Android and iOS.
Operating System:
Windows (Android target)
Mac OS X (Android and iOS targets)
Linux (Android target)
Development environments:
Android Studio
XCode
Visual Studio Code
iOS versions:
iOS 9, 10, 11, 12, 13, 14, 15
Android versions:
Android 4.x, 5, 6, 7, 8 , 9 , 10 , 11, 12
Features:
Support of SIP and RTP
Voice and video calls
Blind call transfer
Call audio recording (without UI)
IM
STUN support
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![](https://voipsipsdk.com/wp-content/uploads/2022/08/1660840169558-512x1024.jpeg)
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