C C++JavaMulti-media Framework for client and serverGstreamerSIP based softphoneSIPMGCPMEGACO/H.248Packet Cable Based cable modemG711-A/G711-U/G722/G726/G729/AMR-NB/AMR-WB/EVS/OPUS/EVRC audio codec and its packetizationH264/VP8 video codec and its packetization handlingAudio/Video Transcoder developementKurento/Open-Vidu MCU integration and Codec handling for Audio proprietory MCU App development on Linux/Windows/Solaris/6Wind OS VoIP/IMS/Multi-Media/Sigalling/PacketCable/Softswitch/Trancoder/MCU/Softphone/IVR/Virtualization