The Essential TL1 Guide:

Essential TL1 Guide

A Quick Reference for Busy Professionals

You probably still have a sizeable investment in TL1, even though it's considered a legacy protocol. Your valuable gear, especially SONET and legacy equipment, depends on your TL1 knowledge.

This Essential TL1 Guide provides fundamental information in a quick summary format. It allows you to spend your valuable time managing revenue-generating infrastructure.

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