Video VoIP SIP SDK - Version 4.5 Video VoIP SIP SDK is a solution to quickly build VoIP softphone that can dial and receive audio and video calls on your computer or add VoIP features into your software or web website.Video VoIP SIP SDK is based on IETF standards (SIP, STUN, etc.) so it is compatible with standard registrars such as Asterisk, Elastix, 3CX etc.The new Version 4.5 comes with: * Video support (H.263, H.264) * Support of all versions of Windows OS, including Windows 8 * Support of SIP, RTP, and SDP * STUN and other IETF standards (compatible with SER, OpenSER and Asterisk) * Encryption mode that accepts secure media * Support of ActiveX, COM, and plain dll files * Video support (H.263, H.264) * Multiple sip accounts registration (NEW) * Automatic selection of correct network interface