Voice is still a high-value attack surface — toll fraud, eavesdropping, and misconfigured SIP endpoints show up as often as “the phones just don’t work.” I design, troubleshoot, and harden VoIP alongside the network it rides on.
What I cover
- SIP / IP desk phones and soft endpoints (e.g. Yealink) — provisioning, registration, and “no service” diagnosis
- Analogue ↔ VoIP bridging (ATA / FXS paths on NBN and LAN)
- IMS-era voice stacks and carrier-adjacent tooling (Microsip, call-trace style troubleshooting)
- Security review of VoIP & IPTV estates (hotel / venue grade) — traffic analysis, exposure checks, MikroTik edge hygiene
- Practical hardening: least-privilege access to PBX/admin, network segmentation for voice VLANs, monitoring for abuse patterns
Why this sits with me
More than a decade across telecom, FTTH, and VoIP, plus hands-on security work on voice and IPTV in production venues — not just cloud slides.
Contact:
Prefer a scoped voice fix or a security pass? Request a service · [email protected]
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