Filter
Top Products
About This Guide
8 4620/4620SW/4621SW IP Telephone User Guide
What’s New in This Document
Issue 3 reflects changes to the document title and legal pages only. There are no significant
changes in telephone operation for Software Release 2.4
How to Use This Document
This guide is organized to help you find topics in a logical manner. Read it from start to finish to
get a thorough understanding of how to use your 4620/4620SW/4621SW IP Telephone. Or, use
the Table of Contents or Index to locate information specific to a task or function you want to
perform.