VaxVoIP WebPhone SDK - Version 6.0.4.2 DEVELOP A WEBPHONEDevelop SIP (Session Initiation Protocol) and WebRTC based webphone with your own GUI and brand very easily.COMPLETE WEBRTC BASED WEBPHONE DEVELOPMENT SOLUTIONVaxVoIP WebPhone SDK is your complete solution for building a WebRTC based WebPhone. With sample codes, a technical manual, a COM component, and a demo application included, unleash the power of WebRTC technology and simplify your WebPhone development process with VaxVoIP WebPhone SDK. COM (COMPONENT OBJECT MODEL) BASED TECHNOLOGYVaxVoIP WebPhone SDK features a single COM (Component Object Model) component compatible with various application development tools such as VC++, C#, VB.NET, Delphi, and C++EASY TO UNDERSTAND SAMPLE SOURCE CODESVaxVoIP WebPhone SDK provides sample code in various development tools.DIAL/RECEIVE PHONE CALLSYou can dial and receive phone calls through any SIP based server, gateway or ITSP (Internet Telephony Service Provider).VIDEO CONFERENCINGActivate VoIP based video conference.DEVELOP SIP BASED INSTANT MESSENGER Add SIP based Instant Messaging and Presence feature to your VaxVoIP integrated Webphone.NAT AND FIREWALL FRIENDLYVaxVoIP WebPhone SDK is friendly to those WebPhone clients who are behind the NAT/firewalls.