Installation, configuration and administering network technologies. Development and design of customer VoIP solutions at the systems and network level in production and non-production environment Routing protocols OSPF, EIGRP, DHCP, DNS, static, RIP etc. voice protocols H.323, SIP, SCCP, MGCP etc. Routers Cisco 28XX, 29XX, 39XX, 43XX, voice gateway VG224, VG248, Switches 35XX, 29XX, 37XX, HP Switches, ATM network Cards etc. Modification and support of existing Cisco infrastructure voice gateways, CTI agent, and Cisco switches, T1, FXO, FXS, and call routing. Implementation of Cisco Unified Communication Manager and voice components, UCCX integration with SQL, IM&P, CUC, Voice Gateways, PRIs, CUBE, SRST CUCM Cluster etc. VMware 5.5, 6 and Hyper- V, and also web technologies HTML, CSS, JavaScript, VXML, also some basic knowledge of TCL scripting. Installing or Upgrading Cisco Call Manager Auto Attendant to allows callers to locate people in within organization, other features like voicemail to email, SNR, Service Modules, switch Modules etc. Troubleshoot and update infrastructure for hunt groups and Auto Attendant. Configuration of PIA private internet access VPN. CISCO RTMT Real Time Monitoring tool, TranslatorX. Window Server 2008, 2012 AD, AS, Domain Controller, UCCE Component’s CVP, PG, Rogger, VXML. Planning, implementing, troubleshooting of Cisco call manager, Cisco Unity Connection, CUCM version 9.1, 11.5, 12, CME, CUC, UCCX and other voice components in production and non-production environment. Designed, tested and implemented cost-effective, customized integrated voice/data converged network solutions. VoIP phones Cisco 79XX, 99XX, 88XX, 78XX, SPA 5XX, Wireless phones, Cisco IP Communicator, jabber using Cisco Call manager version 9.1, 11.5, 12, CME. CTI port CTI route IPCC and SRST issue. Administrative tasks associated with Move / Add / Changes. Upgrading phone firmware’s, router, switch IOS. Configuration and support for Access Points included, Mikrotik hAP using Winbox other devices, Aruba AP 105, Cisco AP, Cisco Wap200E, Cisco WLC5508, also APC powered Rack PDU switches. Diagnose, troubleshoot and resolve a range of software, hardware and connectivity issues. BAT (Bulk Administration Tool) Migration from Nortel PBX or any other PBX to Cisco. T1,T3 circuits, run configuration and setup the routers and switches, for the clients. Planning, establishing, troubleshooting SIP to SIP trunk with an ITSP. Transferring the License between Cisco routers. VoIP, telecommunication, sip, Packet Tracer, GNS3, Duo mobile, IP Addressing, IPv4