• Implementation, configuration and troubleshooting of CUCM, Contact Center (UCCX, UCCE and PCCE), IM & Presence, Unity Connection and ECE• Implementation, configuration and troubleshooting Expressways, Jabber, Finesse, VCS, Telepresence and CMS• Cisco Webex administration and applications using Webex Control Hub• Implementation, configuration and troubleshooting of Cisco IOS voice signaling protocols based on SIP, SCCP, H.323 and MGCP• Implementation and integration of Eleveo Zoom call recording with the UC infrastructure• Configuration and troubleshooting CME, Cisco Voice gateways and CUBE, and high availability implementation• E1/T1 PRI/BRI, ISDN (Digital), FXO and FXS (Analog) configuration and troubleshoot• Integration with ITSP for SIP trunk implementation• Managing collaboration products certificates, licensing using Cisco smart account satellite and SSM On-Prem (Flex and Perpetual)• Virtualized Cisco UC solutions on UCS box based on Vmware ESXi and Vcenter management• Implementing Toll Fraud prevention for UC infrastructure• SIP inspection and analysis on several types of firewalls (ASA, Fortinet and Palo Alto)• Network security integration with VoIP infrastructure for allowing SIP signaling and RTP media communication between telephony networks and clusters• Installing patches for vulnerabilities and CVEs affecting Cisco collaboration products• Creating Python and Bash scripts for CUCM and Contact Center automation• Perform analysis and diagnostics of complex networking problems including Unified Communications and Collaboration solutions• Perform support and maintenance for both existing and newly designed networks• Technical troubleshooting, Real-Time debugging and analysis of network captures collected via Wireshark• Collecting and analyzing logs and traces for call manager clusters using RTMT• SNMP configuration for network monitoring using PRTG and Solarwinds

• Implementation, installation and maintenance of VAS systems (IVR, SMS and USSD platform)• Integration with SMSC, MSC, MGW, HLR, MAP, IN, EMA, AIR, Charging and Billing systems (Diameter, UCIP and Camel)• Installing and configuring Voice integrations with Core (SS7, Sigtran and SIP)• Integration with Twilio for Voice and SMS services• Design and development of VAS services, Database design, Call flow• Integration with 3rd parties (Ericsson – Huawei – Comviva ...)• Technical troubleshooting, Real-Time debugging and analysis of network captures collected via Wireshark• Monitor all reported issues, analyze and troubleshoot to determine depth of issue and severity, investigate potential workarounds• Documentation of systems and services installed• Design and implement VAS services based on customers request and market needs• Testing and validating new and updated product releases• Travel for on-site implementations

• Designing physical and logical network topologies• Simulating network infrastructure scenarios prior the implementation• Project management and planning• Supervising project implementation and installation• Providing advices for network infrastructure designs and installations

Network Operations Center (NOC) team monitor large computer networks and servers for problems from a central location. They analyze problems, perform troubleshooting and incident response on the system, communicate with site technicians and track problems through to resolution.NOC duties and responsibilities:• Monitor Systems• Troubleshoot Problems• Track all Issues• Report Incidents• Handle clients issues remotely/on site

Installation and configuration of Cisco IP phones using Cisco Unified Communication Manager

• End-user support• Internal systems and network administration• IT physical & logical security administration• External security• Switching, routing, and storage installation• Configuring and troubleshooting Cisco and Lenovo products• Installing and configuring linux servers• Physical and virtual server configuration

•Siemens Switching, EWSD, Signaling #7 (SS7) and the Telephone traffic• PSTN Network, Access Network, Switching System Microwave Transmission and Digital Transmission Systems• Studying the deployed cables, characteristics and design of PSTN network• Assist in the Exposure of the PSTN Access Network including cables, distribution points…• Assist in the operation and configuration of the Siemens switching platforms• Hands on project about the SDH transmission system regarding the Lebanese territory• Switching concept and techniques, PCM, functions of a switch, elements of the switch

• Data Entry• Cataloging• Sorting and filtering