Expert into Open Source VoIP, Cisco UC (Unified Communication, CCIE Voice), Cisco Telepresence (CTS & TAA), VMware, *Nix & Security, KT Process.CCIE VoiceCCIE Security Written, preparing for LabCCNP Voice (CCVP), CCNA, CCNA WirelessCisco Wireless Lan Implementation SpecCisco Data Center AS Support SpecialistCisco Data Center Application Services Support SpecialistCisco Data Center Support for UC SpecialistCisco Unified Computing Technology Support SpecialistCisco Unity Design SpecialistCisco Unity Support SpecialistCisco TelePresence Solutions SpecialistVMware certified professional 4 & 5VMware certified capacity plannerMCPMany major projects, ITIL and KT Process.