User Guide for SIP VP-T49G IP Phone823. Tap the Save soft key to accept the change or to cancel.NoteTo deactivate the phone lock via phone user interface:1. Tap ->Advanced (default password: admin) ->Phone Lock.2. Tap the Lock Enable field.3. Tap Disabled in the pop-up dialog box to disable this feature.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 SettingsVolumeYou 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 audiodevices (handset, speakerphone or headset) when the phone is in use.The unlock PIN length must be within 15 digits.
