PBX · VoIP · AI Voice · WebRTC · SaaS

Build Smarter Communication Platforms with VoIP, AI & Full-Stack Engineering

Design and build scalable communication platforms combining FreeSWITCH, Asterisk, SIP, WebRTC, AI voice agents, SaaS applications, APIs and cloud infrastructure — from architecture to production.

Discuss Your Project See Selected Work
Architecture → Development → Deployment
$ unifiedpbx architecture
Telephony   → SIP / RTP / PBX
Realtime    → WebRTC / APIs
Intelligence → AI Voice / LLM
Platform    → SaaS / CRM / CCaaS
Cloud      → Docker / Linux / CI/CD
✓ Production-ready architecture
20+
Years Engineering Experience
90+
Successful Upwork Projects
E2E
Architecture to Production
AI + VoIP
Modern Communication Systems
WHAT I BUILD

Communication platforms built for real-world business

From a focused SIP integration to a complete multi-tenant communications SaaS, the architecture is shaped around the business workflow and long-term operating requirements.

PBX

Custom PBX & VoIP

FreeSWITCH, Asterisk, FusionPBX, SIP routing, IVR, DID management, call queues, recording and failover.

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AI

AI Voice Agents

Conversational IVR, AI-powered call handling, speech services, LLM integration and automated voice workflows.

Explore AI Voice →
CC

Contact Center

Queues, agents, routing, recordings, analytics, dashboards and integrations for modern CCaaS workflows.

Explore Contact Center →
WEB

WebRTC Applications

Browser-based calling, softphones, SIP/WebRTC integrations and real-time communication applications.

Explore WebRTC →
SaaS

Multi-Tenant SaaS

Tenant isolation, subscription management, administration portals, APIs and scalable communication products.

Explore SaaS →
DEV

Full-Stack Engineering

Frontend, backend, APIs, databases, integrations, cloud infrastructure and production troubleshooting.

Explore Development →
SELECTED WORK

Platforms that connect telephony, software and operations

Confidential client names are omitted. The screenshots are representative product UIs from communication platforms designed and engineered in this practice.

Multi-tenant contact center dashboard with live queues and agent status CCaaS · FreeSWITCH · SaaS

Multi-tenant contact center

Queues, campaigns, agent state, recordings and supervisor visibility on a tenant-isolated CCaaS stack.

Read the case study →
AI voice agent console with live transcript and SIP metadata AI Voice · SIP · IVR

Multilingual AI voice & IVR

English, Hebrew and Yiddish voice workflows connected to telephony, speech services and transfer rules.

Read the case study →
SOLUTIONS

Technology translated into business outcomes

AI Call Center

Automate inbound and outbound customer conversations with AI voice agents connected to your telephony and business workflows.

Build an AI Call Center →

Cloud PBX

Build a secure, scalable and multi-tenant hosted PBX tailored to your operational or SaaS model.

Build a Cloud PBX →

VoIP Platform

Launch your own communication platform with SIP routing, tenant management, APIs and administration.

Build a VoIP Platform →

WebRTC Softphone

Bring browser-based calling into your web application with SIP/WebRTC architecture and real-time controls.

Build a Softphone →
WHY UNIFIEDPBX

Architecture before code.

The objective is not simply to make a PBX or application work. The objective is to create a system that can be maintained, integrated, scaled and operated in production.

Telecom + Software

One engineering partner across the communication stack.

Business-Driven Design

Architecture starts with workflows, users and operating goals.

Production Mindset

Deployment, observability, reliability and security are part of the design.

Long-Term Scalability

Design for integrations, tenants, traffic and future product evolution.

HOW I WORK

A clear path from idea to production

1
Discover

Requirements, workflows and constraints.

2
Architect

Components, data flows and integrations.

3
Build

Backend, frontend and telecom layers.

4
Integrate

SIP, AI, CRM and external services.

5
Deploy

Cloud infrastructure and production release.

6
Improve

Monitoring, optimization and iteration.

TECHNOLOGY

A broad engineering stack

FreeSWITCHAsteriskFusionPBXSIPRTPWebRTCIVRAI VoiceLLMRAGPythonJavaScriptReactREST APIsSQLDockerKubernetesLinuxCI/CD
FROM THE BLOG

Recent writing

10 Sep 2026

Urban Company and the trust behind a service

What a home-painting job revealed about ownership, escalation and customer satisfaction.

Read article →
09 Sep 2026

A PBX is now part of the business app

When the phone system has to live inside CRM, WhatsApp and customer workflows.

Read article →
WebRTC · FusionPBX

From broken WebRTC calls to a SIP lab

How one-way audio debugging becomes a reusable diagnostic environment.

Read article →

View all articles →

FAQ

Questions before the first conversation

Production communication systems: FreeSWITCH and Asterisk development, FusionPBX customization, SIP/VoIP routing, AI voice agents, contact-center platforms, WebRTC softphones, multi-tenant cloud PBX, and the surrounding full-stack SaaS, APIs and cloud work.

Both. Many engagements start with an existing FreeSWITCH, Asterisk, FusionPBX or SIP environment that needs architecture, integrations, AI voice, troubleshooting or a path to production. New platforms are designed from the workflow and operating model first.

Yes. The typical design joins SIP/RTP, speech-to-text, an LLM or workflow engine, text-to-speech, and transfer rules so the agent can answer, qualify, hand off to a queue, or complete a business action.

Send the current architecture, the problem, and any constraints through the contact form. The first response is a technical review, clarifying questions, and a recommended next step — not a generic sales script.

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Have a PBX, VoIP, AI Voice or SaaS project?

Share the problem, current architecture or product idea. We can start with the technical scope and determine the right next step.

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