Embedded Video conferencing systems architecture design and implementation. Helped customer to do the field testing and deployment. VOIP software. Worked in C, C++, Python, Perl languages on Linux, Android, IOS platforms. H.264/MPEG-4/MPEG-2 video compression; worked with all Speech codecs (G.xxx series), audio codecs i.e. AAC and telephony components i.e. AEC, CPT, CLI, DTMF, TSM.