TDM Routes for Beginners: Zero to Hero

Legacy circuit-switched telecom (T1/E1/PRI) and how it bridges to modern VoIP — general industry knowledge, since 6X's own wholesale interconnect is SIP/IP-based.

Prerequisites

Recommended: complete VoIP Basics or SIP Trunk Basics first.

What You'll Learn

Understand what TDM is and why some businesses still use it
Know the main TDM interfaces (T1, E1, PRI, BRI) and signaling types
Understand how TDM-to-VoIP gateways bridge legacy hardware to modern SIP
Spot fake or unreliable TDM/gateway providers
Find customers who still run legacy PBX hardware

Powered by 6X – your legacy-to-VoIP bridge guide! TDM (Time Division Multiplexing) is the traditional circuit-switched telecom technology (T1/E1/PRI) still used by some legacy PBX systems.

6X's own wholesale interconnect to resellers is SIP/IP-based, not a literal TDM circuit — this course teaches the general technology so you understand how to serve customers still running legacy hardware, typically via a TDM-to-VoIP gateway on their end.

Course Outline

TDM Basics – The Old-School Telecom Backbone

TDM Technologies – Know the Hardware

Simulate TDM-to-VoIP Conversion

Serving Legacy Customers – A Real Niche

Compliance & Avoiding Bad Gateway Vendors

Finding Legacy-Hardware Customers

TDM Legend Status Unlocked!

Quiz

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