Network Support * Assist in installation and configuration of LAN/WAN networks. * Configure basic IP addresses, sub netting, DHCP and DNS. * Basic understanding of VLAN, trunk/access ports and PoE. * Assist with configuration of network switches and routers. * Troubleshoot basic network connectivity issues using: • Ping • Traceroute • IP configuration • Basic switch commands. * Assist in troubleshooting network connectivity, packet loss and latency issues. VoIP / IP-PBX Support * Assist with installation and configuration of IP-PBX systems. * Configure SIP extensions and IP phones. * Basic understanding of SIP registration and SIP calling. * Troubleshoot: • IP phone registration issues • Incoming/outgoing call problems • No audio/one-way audio • SIP trunk connectivity • IP phone network connectivity. * Learn and work with Asterisk, Zycoo, Coovox, Matrix, Dasscom or similar PBX systems. * Assist senior engineers with customer troubleshooting and remote support. IP Phones & VoIP Devices * Installation and configuration of IP phones from vendors such as: • Fanvil • Grandstream • Yea link • Matrix • Dasscom * Basic knowledge of SIP account configuration. * Perform phone firmware updates and basic troubleshooting. * Assist with IP-PBX and IP-phone deployment at customer sites. Linux & Server Support * Basic knowledge of Linux is preferred. * Learn basic Linux commands and troubleshooting. * Assist with checking: • Services • Network connectivity • Disk space • System logs. * Basic exposure to Docker is an advantage. Troubleshooting & Customer Support * Provide remote and onsite technical support. * Collect logs and screenshots from customer systems. * Assist senior engineers in analyzing Wire shark/PCAP captures. * Follow troubleshooting procedures and document solutions. * Prepare basic installation and service reports. * Escalate complex issues to senior engineers. Requirements Candidate should have basic knowledge of: * TCP/IP * IPv4 addressing * Sub netting * LAN/WAN * Ethernet * VLAN * DHCP * DNS * NAT * PoE * Basic routing * SIP * VoIP * IP phones * Basic Linux commands. Good to Have * CCNA certification or CCNA-level knowledge. * Basic Asterisk knowledge. * Basic Wire shark knowledge. * Basic Linux knowledge. * Basic knowledge of switches and routers. * Knowledge of SIP/RTP. * Networking or VoIP project/internship experience.