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Skylar SIP SDK

Skylar SIP SDK provides tools and components to quickly add SIP (Session Initiation Protocol) based SoftPhone or VoIP Dialer. It accelerates the development of SIP based soft phone with your own GUI (graphical user interface) and brand name.It's complies with IETF and 3GPP standards, delivers high performance, and provides advanced API layer for full user control and flexibility. Skylar is fully compatible with Open Source SIP Server, such as Asterisk, FreeSwitch, OpenSER and YATE. The Skylar SDK uses C++, with wrappers available for differentprogramming environments, such as .NET and JAVA for Windows, Java for Android and Objective-C for iOS and Mac OS X. Through the use of a common SDK, developers can leverage the same set of core methods regardless of the underlying operating system, gaining significant benefit from the use of the same stack across all platforms.


Key Features:

Call Features, such as make call, receive call, call hold/unhold, 3-way calling/conferencing Multiple call support – swap between two active calls, merge and split calls, transfer calls (attended and unattended)

Enhanced Voice Quality:

» Adaptive Jitter Buffer
» Packet Lost Concealment
» Noise Suppression
» Acoustic Echo Cancellation
» Automatic Resampling
» Gain Control

DTMF Support: use an auto attendant via RFC 2833/4733 and Inband
NAT Traversal support: STUN, TURN, ICE, Auto NAT type detection
QoS support on sockets (DSCP, WMM)
Automatically discover the server by using DNS SRV
Support for TLS and SRTP for advanced signaling and media encryption
Call Quality Statistic Features includes support for querying RTCP-based call information, including latency, packetloss
     and more, for voice calls
Dial plan normalization
Multiple account support for up to 50 accounts on any SIP-compliant server
HD Wideband audio through G.722 codec.
Enhanced/Optimized OPUS codec support for low bandwidth network.
Audio codecs include G.722 (HD), G.729, G.711A/U (PCMA/PCMU), GSM, Speex, iLBC and OPUS