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A powerful and highly versatile VoIP SDK to accelerate development of any type of VoIP-enabled application, like e.g. a SIP soft phone, teaching tool, live support, meeting tool or any other type of application which requires users being able to talk to each other.Deliver SIP-based communications and services for PC-to-Phone, Phone- to-PC and PC-to-PC services and is fully inter-operable with any RFC SIP 3261Provide the documentation and samples you need to integrate with other applications or websites, can be used by any development environment has ActiveX support.Standard Features:· Multi phone lines.· Caller ID.· Call rejection.· Call waiting.· Call forward & blind transfer.· Call hold.· Call recording.· Microphone and Speaker volume control with mute support.· Microphone and Speaker visualization support.· Redial, Auto answer & Do not disturb.· Direct IP to IP Calling.· Video call.Enhanced Features· Separate Call history for each registered user.· Audio & Video tuning wizard.· Acoustic echo cancellation, redundant audio coding, dynamic jitter buffer and adjustment, automatic gain control, voice activity detection.· Support for the following audio codecs:G.711, G.722.1, G.723, GSM, DVI4 and SIREN· Support for the following video codecs:H.261 and H.263.· Automatic selection of the best codec based on the other party’s capability, available bandwidth, and network conditions, switch the codec within a call in response to changing network conditions.· UPnP-enabled NAT traversal.· DTMF support.· Live update.· Fully commented sample applications for VC++, C#, VB.Net and JavaScript (Web demo).
