Telecommunications and IP networking engineer with 25 years of hands-on experience designing, deploying, and maintaining business-critical systems. Co-founded a VoIP service provider, architected Asterisk calling platforms from scratch, and served as Tier 3 Voice Operations escalation engineer for complex enterprise network failures. Self-taught problem solver specializing in Linux administration, packet-level SIP diagnostics, and PBX integrations.
Asterisk, SIP Trunking, PBX Integration (FreePBX, 3CX, Avaya), SBCs, Adtran TA904 Gateways, PRI/T1 Conversions.
Packet trace analysis using tcpdump and Wireshark, Ubiquiti (EdgeRouter, UniFi, PtP Wireless), Routing & Switching.
Linux (Debian, CentOS, Red Hat, Ubuntu), macOS, Windows 11, Web & Mail Hosting Infrastructure, DNS.
Bash / Shell Scripting, PHP, Salesforce, Zendesk, osTicket, CPE Auto-Provisioning Workflows.
tcpdump and Wireshark to diagnose one-way audio and SIP signaling errors.