You will get custom SIP server & PBX system with Asterisk, real-time VoIP call handling
Project details
I design and deploy production-grade SIP servers and PBX systems built on Asterisk, FreeSWITCH, and Kamailio for businesses that need rock-solid voice infrastructure.
Whether you are launching a cloud call center, building an internal phone network, or integrating VoIP into an existing platform, I handle the full stack: SIP signaling, media relay, WebSocket bridges, PSTN trunking, and real-time audio streaming with sub-50ms latency.
Every system I deliver is load-tested for 100+ concurrent calls and hardened with encrypted signaling (TLS/SRTP) and firewall-optimized configurations.
I also provide documentation, deployment scripts, and post-launch monitoring setup so your team can operate it independently.
If you need custom IVR flows, call recording, or CRM integrations (Salesforce, HubSpot), I have done it before and can plug it in seamlessly.
Let me know your scale and I will propose the right architecture.
Whether you are launching a cloud call center, building an internal phone network, or integrating VoIP into an existing platform, I handle the full stack: SIP signaling, media relay, WebSocket bridges, PSTN trunking, and real-time audio streaming with sub-50ms latency.
Every system I deliver is load-tested for 100+ concurrent calls and hardened with encrypted signaling (TLS/SRTP) and firewall-optimized configurations.
I also provide documentation, deployment scripts, and post-launch monitoring setup so your team can operate it independently.
If you need custom IVR flows, call recording, or CRM integrations (Salesforce, HubSpot), I have done it before and can plug it in seamlessly.
Let me know your scale and I will propose the right architecture.
Programming Languages
PHP, JavaScript, PythonWhat's included
| Service Tiers |
Starter
$350
|
Standard
$750
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 21 days |
Number of Revisions | 2 | 6 | 9 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Frequently asked questions
About Ammar
Software Engineer
Alexandria, Egypt - 8:02 pm local time
I've worked on AI voice platforms, high-traffic crypto data feeds, and microservice architectures . I don't just write code — I design systems, measure outcomes, and ship things that hold up when it matters.
Results I've delivered:
▸ Cut AI voice latency in half — from 4 seconds to 2 seconds on a live SaaS platform
▸ Reduced platform downtime by 90% through on-call architecture redesign
▸ 27+ client projects delivered with a 5.0/5.0 rating and zero disputes — ever
▸ Achieved 98/100 PageSpeed score on a high-traffic, real-time crypto platform
What I build:
▸ Full-stack web apps — React, Next.js, Node.js, TypeScript, MERN/MEAN
▸ Microservice & event-driven architectures — RabbitMQ, Kafka, Docker, Kubernetes
▸ Real-time systems — WebSockets, VoIP integration, live data pipelines
▸ SaaS platforms, API-first backends, and high-performance admin dashboards
▸ WordPress solutions — 20+ custom themes and plugins, serving 5,000+ active users
What makes working with me different:
✔ I ship with metrics — every project has a measurable outcome attached
✔ Production-hardened mindset — I've monitored, scaled, and recovered real systems under load
✔ Proactive communication — no chasing, no ambiguity, no surprises at delivery
✔ ALX Software Engineering — graduated with 112% (bonus projects pushed past 100%)
Tech: TypeScript · React · Next.js · Node.js · Python · PHP · PostgreSQL · MongoDB · Docker · Kubernetes · AWS · Kafka · RabbitMQ · Datadog
I'm selective about the projects I take on — I work best with clients who care about quality, not just speed. If you need someone who has already built what you're trying to build, let's talk. I'm quick to respond and happy to jump on a short call.
Steps for completing your project
After purchasing the project, send requirements so Ammar can start the project.
Delivery time starts when Ammar receives requirements from you.
Ammar works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery call
Review your requirements, server environment, and feature list. I will propose the architecture and confirm the tech stack (Asterisk/FreeSWITCH/Kamailio).
Server setup and SIP engine installation
Install and configure the SIP server, set up DNS, firewall rules, and NAT traversal for reliable call connectivity.