Nathan M.

Experienced Voice & Telecom Engineer | PBX • SIP Trunking • FTTH • VoIP I am a qualified Telecom and IT Systems Engineer with over 15 years of experience delivering reliable voice and data solutions for enterprise and ISP clients. I specialize in: ✅ PBX Systems: FreePBX, Cisco CUCM, 3CX, Asterisk (Analog, IP, and Hybrid setups) ✅ VoIP & SIP Trunking: End-to-end setup, testing, and troubleshooting ✅ FTTH Deployments: OLT/ONU configuration (ZTE, Huawei), GPON rollout ✅ ISDN PRI & Legacy Systems: Migration planning and integration ✅ Network Diagnostics: Wireshark, sngrep, SIP trace analysis ✅ Core Network Support: NGN/UMG provisioning, IP/MPLS routing basics Whether you are setting up a new VoIP system, troubleshooting call quality issues, or integrating SIP trunks into an existing PBX — I bring deep technical insight and real-world implementation experience to ensure your solution works as expected. I am available for: • Remote troubleshooting & diagnostics • PBX/SIP trunk configuration • FTTH/OLT provisioning • Documentation & technical support Let us work together to build stable, scalable, and efficient telecom solutions tailored to your business.