Here you can download manuals for VoIP SIP SDK and other useful information for learning and quick reference.
LICENSE AGREEMENT
ABTO Software VoIP SIP SDK License Agreement
SUPPORT AGREEMENT
ABTO Software VoIP SIP SDK Support Agreement
ABTO Software VoIP SIP SDK Privacy Policy
QUICK FACTS
ABTO SIP SDK for Windows
ABTO SIP SIP SDK for iOS calls handling state diagram
Which credentials should I enter on registration screen (Android)?
Which credentials should I enter on registration screen (iOS)?
MANUALS
ABTO VoIP SIP SDK for Windows
ABTO RTP SDK for Windows
ABTO VoIP SIP SDK for iOS
ABTO VoIP SIP SDK for Android
ABTO WebRTC SIP SDK
HOW TO
How To Add Android SDK Into Existing Project
How To Add iOS SDK Into Existing Project
How to receive incoming calls via PUSH notifications
How to setup and use Flutter SDK