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You can sign into or sign out of your Microsoft online account on the phone.

To sign into your Microsoft online account:

1. Tap 

Sign in

.

    You will be connected to the Company Portal automatically.
2. Follow the on-screen prompts.
If you select shared mode, you can only place calls, receive calls and join the scheduled Teams 
meetings.

To sign out of your Microsoft online account:

1. Tap 

 at the top-left corner of the touch screen.

2. Tap

 Settings->Sign Out

.

You can enable the phone lock feature to prevent it from unauthorized use. 

To enable the phone lock feature:

1. Tap 

 at the top-left corner of the touch screen.

2. Navigate to 

Settings

->

Device Settings

->

Phone Lock

.

3. Turn on 

Lock Enable

.

4. Enter the lock PIN in the 

New PIN

 field.

5. Enter the lock PIN again in the

 Confirm PIN

 field.

6. Select a desired value in the 

Idle time-out

 field. 

7. Tap 

 to accept the change. 

The phone will lock automatically when it has been inactive for a specified time. 

To unlock the phone: 

1. Tap 

 when the phone is locked.

2. Enter the unlock PIN.

Your presence information is a quick way for other people to see your availability status. You can 
change it manually if you want to.

To change your presence status:

1. Tap 

 at the top-left corner of the touch screen.

Startup

After the Teams phone is connected to the network 

and supplied with power, it automatically begins the 

initialization process. After startup, select a desired 

language and then the phone enters the sign-in screen.

Sign into or Sign

 

out of Your Microsoft Online Account

Phone Lock

Change Your Presence Status

Summary of Contents for T55A-Teams

Page 1: ...T55A Teams Edition Quick Start Guide V15 36 www yealink com Applies to firmware 58 15 0 36 or later...

Page 2: ...party accessories may result in reduced performance Assembling Your Phone Note You need to attach the wallmount button to the wallmount bracket first to hook the handset and prevent it from slipping T...

Page 3: ...ower or PoE A B Note The IP phone should be used with Yealink original power adapter 5V 1 2A only The use the of third party power adapter may damage the phone 5 Connect to the network AC Power PoE Po...

Page 4: ...Hardware Component Instructions Item 1 Power LED Indicator 2 Touch Screen 3 HEADSET Key 4 MUTE Key 5 Speakerphone Key 6 Volume Key 7 MESSAGE Key 8 Speaker 9 Keypad 10 USB2 0 port 1 2 3 4 5 6 7 8 9 10...

Page 5: ...ock Enable 4 Enter the lock PIN in the New PIN field 5 Enter the lock PIN again in the Confirm PIN field 6 Select a desired value in the Idle time out field 7 Tap to accept the change The phone will l...

Page 6: ...gain to un mute the microphone during a call To place a call on hold 1 Tap Place call on hold during an active call To resume the held call 1 Tap Resume Initiate a Conference Call You can initiate a c...

Page 7: ...search and then select the desired contact 3 After the party answers the call tap beside the transferred contact It prompts you whether to transfer the call or not 4 Tap OK to complete the transfer 5...

Page 8: ...product Before connecting a cable connect the grounding cable of the device first Do not disconnect the grounding cable until you disconnect all other cables Operating Requirements Before cleaning th...

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