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Startup

1. Attach the stand, as shown below:

2. Connect the handset and optional headset, as shown below:

3. Connect the network and power, as shown below:

The following items are included in your package. If you find anything missing, 

contact yoursystem administrator.

Packaging Contents

Assembling the Phone

Note:

 If inline power (PoE) is provided, you don’t need to connect the power adapter. Make sure 

          the Etherne cable and hub/switch are PoE compliant.

CD-ROM

Stand

Power Adapter

Handset Cord

Handset

IP Phone

Ethernet Cable

Quick Installation 

Guide & Quick 

Reference Guide

Note: 

The headset should be purchased separately.

SIP-T21P Quick Installation Guide

www.yealink.com

You have two options for network and power connections. Your system administrator will 

advise you on which one to use.

After the IP phone is connected to the 

network and supplied with power, it automatically 

begins the initialization process. After startup, 

the phone is ready for use. You can configure the 

phone via web user interface or phone user interfafce.

Welcome

Initializing... please wait

Desk Mount Method

A

B

Wall Mount Method

1

2

A

AC Power Option

PC Connection

    (Optional)

Power Adapter

      (DC 5V)

B

PoE ( Power over 

Ethernet ) Option

PC Connection

    (Optional)

IEEE 802.3af compliant

     PoE Hub/Switch

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