Objective voice quality
MOS, PESQ / POLQA, R-factor as their own discipline. Codec engineering (Opus, EVS, transcoding trade-offs). Jitter buffers, packet loss recovery, FEC engineered for real network conditions.
The VoIP Engineer's Library · Vol III · Coming soon Engineering VoIP
Engineering VoIP
for Quality and Scale
A practical guide to tuning, scaling, and operating VoIP at production quality.
Coming soon to Amazon Get notified
Vol III is in planning. The scope is locked at five parts and twenty chapters, but the manuscript and companion materials are not yet drafted. Drop a note to be told first when it ships.
// The VoIP Engineer's Library Vol III ENGINEERING VOIP FOR QUALITY AND SCALE A practical guide to tuning,
scaling, and operating VoIP
at production quality. Coming soon
scaling, and operating VoIP
at production quality. Coming soon
The same capture-driven approach, applied to engineering
Volumes I and II build the operational triangle for running VoIP in production. Network Analysis for VoIP Engineers teaches the diagnostic discipline — read the wire, find the failure, fix it. Securing VoIP at Every Layer teaches the defensive discipline — harden, detect, respond. Vol III carries that capture-driven methodology into the engineering discipline: design and tune VoIP for quality and scale from the ground up.
The same packet-level fluency that lets you diagnose a one-way audio call or spot a toll-fraud probe also lets you measure voice quality objectively, prove a redundancy design under load, tune jitter buffers for real-world network conditions, design voice VLAN architecture at multi-site scale, engineer carrier-side BGP for SIP media paths, and meet federal MLTS compliance for emergency calls. Quality and scale engineering are things that happen on the wire too.
Where Vol I asks why did this call fail? and Vol II asks how do we keep this platform from being attacked?, Vol III asks is your VoIP good enough — and how do you make it better? Together the three volumes cover the operational discipline of running VoIP for an organization: diagnose, defend, engineer.
What it will cover
Five parts, twenty chapters. Final table of contents will be locked during drafting; scope at the section level is settled:
Production-scale SIP
HA patterns (active/active vs. active/passive), geographic redundancy, multi-region SIP, load distribution across proxies and SBCs and registrars, capacity planning with queue theory for voice.
Voice on the LAN
Voice VLAN architecture at scale, LLDP-MED auto-assignment, DHCP for voice fleets (relay, advanced options, scope exhaustion), the firewall vs. SIP ALG vs. SBC architectural decision, access-layer engineering, IPv6 on the voice LAN.
Kari's Law and RAY BAUM's Act
MLTS architecture, dispatchable-location discovery (LLDP-MED civic location, DHCP options 99 / 123 / 144, BSSID, GPS), location-in-SIP signaling, LIS / LoST integration, audit trail and records retention.
Trunk and transit engineering
SIP trunk design (single vs. multi-carrier, peering), IPv6 SIP trunking and dual-stack carrier interconnect, BGP and routing for voice media paths, advanced QoS beyond DSCP (MPLS-TE, SD-WAN), multi-carrier diversity strategies.
Proving the design
Capture-driven validation under load. Scaling-incident case files — production outages reconstructed and worked through the same shape Vols I and II use: symptom, filter, money packet, fix. Applied to capacity, quality, and reliability incidents.
In the meantime
Vols I and II are out now
The diagnostic and defensive foundations that Vol III's engineering discipline builds on. Both available in paperback and Kindle on Amazon, with the full companion library — annotated packet captures, tuned Wireshark profiles, cheat sheets, lab guides and a capture-analysis workbook — free on this site.