In-depth knowledge of VoIP protocols such as SIP, RTP, and their implementations in various network environments.Expertise in configuring and troubleshooting VoIP systems, including PBX platforms like Asterisk and Neox , ViCi DialProficiency in managing network infrastructure elements crucial to VoIP, such as VLANs, DHCP, and QoS mechanisms.Experience with voice codecs (e.g., G.711, G.729, Opus) and their optimization for network bandwidth and voice quality.Skills in monitoring and analyzing VoIP performance using tools like Wireshark and Sngrep, ensuring optimal call quality.Ability to implement security measures for VoIP systems, including encryption (TLS, SRTP) and firewall configurations.Familiarity with vendor-specific certifications (e.g., Cisco CCNA Voice/Collaboration, Avaya, Dinstar) demonstrating expertise.Strong troubleshooting capabilities to identify and resolve complex VoIP issues promptly.Documentation skills for maintaining comprehensive technical documentation and reports on VoIP configurations and incidents.