Engineering carrier-grade telecom systems & autonomous SRE pipelines.
Hi, I’m Phongthep Phimthong (Captain) — Senior Systems Engineer at JADS COMM. I design 99.999% SLA Avaya voice cores, VMware/Proxmox virtual architectures, and deterministic AI telemetry.
Featured Engineering Architectures
Mission-critical infrastructure architectures designed, deployed, and verified in enterprise production environments.
Multi-DC Avaya Aura® Voice Core & ASBCE Cluster
Carrier-grade 99.999% SLA telephony infrastructure engineered for tier-1 financial and corporate enterprises.
Financial institutions and mission-critical contact centers faced catastrophic loss of revenue during data center failovers, requiring sub-second trunk failover without tearing down active calls or losing agent registrations.
Active/Standby Avaya Communication Manager (CM 10/8.1) cluster with Session Manager (SM) SIP proxy routing, ASBCE perimeter encryption (SRTP/TLS 1.3), and dual-homed BGP SIP trunks across geographically separated data centers.
Autonomous AI Voice & PBX Telemetry Pipeline
Real-time event-driven telemetry and incident triage system bridging Asterisk/Yeastar PBX logs with AI root-cause analysis.
Voice engineers spent hours manually parsing SIP packet captures after intermittent audio dropouts or 503 Service Unavailable spikes, delaying emergency restoration and SLA compliance.
Event-driven microservice streaming AMI/ARI logs and sngrep PCAP rings into an n8n workflow engine. An AI reasoning node correlates SIP response patterns with network jitter buffers and pushes root-cause solutions to Telegram within 800ms.
High-Availability Enterprise Hypervisor Cluster
Redundant VMware vSphere and Proxmox VE hyperconverged infrastructure engineered for zero-downtime voice nodes.
Single-server hardware deployments suffered from unbudgeted maintenance windows and high recovery time objectives (RTO > 4 hours) during storage controller failures.
Dual-cluster virtual infrastructure with Proxmox VE & VMware ESXi 8.0, featuring Ceph distributed storage, 10GbE vSwitch uplinks, automated VM live migration, and microsegmented VoIP VLANs.
Enterprise SIP Perimeter Defense & Threat Gateway
Stateful border security gateway mitigating automated SIP brute-force scans, ghost calls, and volumetric UDP floods.
Public IP SIP trunks constantly targetted by automated SIP scanners (e.g. friendly-scanner, sipvicious), generating false ring alerts and PBX resource exhaustion.
Stateful ASBCE perimeter combined with dynamic kernel-level nftables/iptables rate-limiting, TLS 1.3 mutual auth, and real-time SIP message inspection rejecting malformed User-Agents.
Engineering Tech Radar
Production toolchains, protocols, and infrastructure layers deployed across carrier voice networks and automated SRE environments.
Duplex HA clustering, Vector programming, AES integration
SIP routing policies, dial patterns, enterprise locations
NAT traversal, TLS 1.3, SRTP crypto, SIP normalization
Yeastar PBX, Cloud PBX, Linkus, API integrations
RFC 3261 deep trace debugging, QoS CoS/DSCP tuning
Real-time ladder diagram analysis, PCAP forensics
High-availability clusters, vMotion, distributed switches
ZFS, Ceph storage pools, cluster quorum, backup cron
Systemd optimization, performance tuning, Bash scripting
Microservices orchestration, lightweight node instances
Subnet planning, trunking, redundant uplinks, QoS priority
Secure encrypted inter-datacenter communication tunnels
Multi-branch automation, Webhook routing, error fallbacks
Incident diagnosis, context-rich root cause reasoning
Bidirectional incident response bots, interactive command UI
Custom daemons, REST API clients, diagnostic automation
Helpdesk ticket automation, CRM and telephony triggers
Rate limiting, automated ban scripts, DDoS mitigation
Certificate authority management, mutual TLS verification
Certified structured cabling & optical fiber standards
Method of Procedure authoring with 100% rollback coverage
Engineering Principles & Writing
In-depth technical architecture breakdowns, packet flow benchmarks, and post-mortems from production voice infrastructures.
Deterministic RTP Packet Flow over Strict QoS MPLS
An architectural guide to eliminating audio jitter and packet reordering in high-density enterprise VoIP cores by combining DSCP 46 Expedited Forwarding with kernel-level buffer management.
Zero-Downtime SIP Trunk Failover in Multi-DC Avaya Aura
How to configure Avaya Session Manager and dual ASBCE borders with BGP health-checking for sub-second failover without dropping established calls.
Autonomous SRE: Bridging AI Reasoning with Real-time PBX Telemetry
Architecting an event-driven self-healing system using Asterisk AMI hooks, n8n workflows, and structured LLM prompts to diagnose trunk errors in under 800ms.