In today’s digital landscape, communication is increasingly inclusive, allowing for real-time, text-based exchanges that cater to users with different needs and preferences. Real-Time Text (RTT) is an essential technology within the IP Multimedia Subsystem (IMS), designed to facilitate text conversations as they happen, character by character. Originally developed to replace legacy TTY systems, RTT offers a universal solution for the deaf, hard of hearing, and anyone who prefers real-time text over traditional voice calls.

I spent a few hours last weekend finalizing my notes on IMS and VoLTE architecture. I’m sharing a section here, hoping it helps anyone interested in reviewing key aspects of IMS networks. This part covers essential topics such as registration processes, Quality of Service (QoS) mechanisms, and SIP routing. It provides a concise summary of these core areas to assist those seeking a quick review or clarification on IMS fundamentals.

One of the challenges with reading 3GPP documents is that it’s easy to forget the majority of details unless you work with them on a daily basis. For support or maintenance teams, this might be feasible, but for developers, it’s much harder. As a developer, you implement, deploy, debug, and often don’t touch the system again for a long time unless an issue arises or a new feature is requested. This is particularly true for telecom core elements like the MME, HSS, etc., which you rarely need to interact with.

AWS offers a wide range of services and tools that simplify the work of developers and solution architects. However, there are instances where certain limitations or missing features can be frustrating or challenging. In this post, I’ll share some workarounds I’ve implemented to make SIP trunks function smoothly on ECS Fargate with AWS Chime Voice Connector.

“The best way to find out if you can trust somebody is to trust them.” – Ernest Hemingway

It’s been a long time since my last blog post, but today, in Ottawa, I want to dive into a topic that has taken me over 12 years to fully grasp: trust—an essential element in any long-lasting relationship, whether personal or professional.