User Guide for the SIP-T48S IP Phone
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You can long press or wait for a period of time (if configured) to lock the phone
again.
Note
To deactivate the phone lock via phone user interface:
1. Tap ->Basic->Phone Lock.
2. Enter the desired PIN (default PIN: 123) in the Unlock PIN field, and then tap OK.
3. Tap the gray box of the Lock Enable field, and then select Disabled from the pull-down list.
4. Tap the Save soft key to accept the change.
Phone lock is configurable via web user interface at the path Features->Phone Lock.
Audio Settings
Volume
You can press the Volume key to adjust the ringer volume when the phone is idle or ringing.
You can also press the Volume key to adjust the receiver volume of currently engaged audio
devices (handset, speakerphone or headset) when the phone is in use.
You can also unlock the phone by administrator password. When you enter the administrator
password to unlock the phone, the phone will turn to the Change PIN screen.
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