About This Guide; In This Guide; Summary Of Changes; Changes For Release 81, Guide Version 81.90 - Yealink SIP-T42S User Manual

About This Guide

Thank you for choosing the SIP-T42S IP phone, an ultra-elegant Gigabit IP phone which is
exquisitely designed to provide business telephony features, such as Call Hold, Call Transfer,
Busy Lamp Field, Multicast Paging and Conference over an IP network.
This guide provides everything you need to quickly use your new phone. First, verify with your
system administrator that the IP network is ready for phone configuration. Also be sure to read
the Packaging Contents in this guide before you set up and use the SIP-T42S IP phone.
Yealink Products Regulatory Notices guide
See the

In This Guide

Topics provided in this guide include:
Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5


Summary of Changes

This section describes the changes to this guide for each release and guide version.

Changes for Release 81, Guide Version 81.90

The following sections are new:
Network Connection

Wireless Network Settings

Bluetooth Headset

Recording Using a USB Flash Drive

Major updates have occurred to the following sections:
Optional Accessories

Phone Installation

Volume on page

Overview
Getting Started
Customizing Your Phone
Basic Call Features
Advanced Phone Features
on page 19
on page 23
on page 65
on page
on page 14
on page 16
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for all regulatory and safety guidance.
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About This Guide
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