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Yealink SIP-T42U Manual

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Yealink T4U Series IP Phones User Guide
96
Unlocking Your Phone
Changing Your Phone Unlock PIN
Setting the Phone Lock
You can manually lock the phone or wait a specified time to automatically lock the phone.
What unauthorized users can do depends on the settings of the phone lock type.
The phone supports the following phone lock types:
lMenu key: it prevents unauthorized users from accessing the menu, changing the personal settings for your
phone.
lFunction key: it only allows users to use the keypad for placing a call, answering or rejecting an incoming call
and ending a call, and it prevents unauthorized users from other operations.
lAll keys: it only allows users to use the keypad for dialing an emergency number or authorized numbers that set
up by your system administrator, answering or rejecting an incoming call and ending a call, and it prevents unau-
thorized users from other operations. The T48U phones only support All Keys type of phone lock.
Note: The Volume key , HEADSET key and Speakerphone key are always available when you lock the phone.
Procedure
1. Go to Menu >Basic >Phone Lock.
On the T43U/T42U phones, go to Menu >Settings >Basic Settings >Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field.
3. Select OK or Save.
4. Select Enabled from the Lock Enable field.
5. On the phones except for T48U, select the desired type from the Lock Type field.
6. Enter the desired interval (0 - 3600 seconds) in the Auto Lock field.
If the value is set to 0, the phone will not be automatically locked.
7. Select Save.
Locking Your Phone Manually
You can lock the phone manually before the phone is automatically locked.
Before You Begin
Make sure that the phone lock is set.
Procedure
1. Long press # key when the phone is idle.
The lock icon appears on the phone screen.
Related Topic
Setting the Phone Lock
Unlocking Your Phone
You can use an unlock PIN to unlock the phone.
If you forget the unlock PIN, you can enter the administrator password to unlock your phone, and then automatically
access the PIN change screen.
Procedure
1. Press any locked key, the phone prompts you to enter an unlock PIN.
On the T48U phones, press any locked key or tap the touch screen.
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