Networks: LAN,WAN, WLAN
Programming: C/C++, Java, Visual Basic, Pascal, Prolog, PL/SQL, HTML/DHTML
RDBMS: SQL Server
VoIP: IP/PBX, VoIP Switch (Gateway, Dial Plan, GK/Registrar), Asterisk Server
OS: Windows XP/Windows Vista/Windows 7 & 8
Other: Adobe Photoshop & Illustrator, MS Office suite of programs