User Guide for the SIP-T48G IP Phone582. Tap the gray box of the Key As Send field, and then select # or * from the pull-down list, orselect Disabled to disable this feature.3. Tap the Save soft key to accept the change or to cancel.Key as send is configurable via web user interface at the path Features->General Information.Phone LockYou can lock your phone temporarily when you are not using it. This feature helps to protectyour phone from unauthorized use.When the phone is locked, the following you needed to know:LCD screen and all keys are locked except the Volume key, digit keys, # key, * key, HEADSET keyand Speakerphone key. You are only allowed to dial emergency numbers, reject incoming callsby pressing the X key or tapping the Reject soft key, answer incoming calls by lifting thehandset, pressing the Speakerphone key, the HEADSET key, the OK key or tapping the Answersoft key, and end the call by hanging up the handset, pressing the Speakerphone key, X key ortapping the End Call soft key.NoteTo activate 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 the Save softkey or press OK.3. Tap the gray box of the Lock Enable field, and then select Enabled from the pull-down list.4. Enter the desired interval of automatic phone lock in the Auto Lock field.The default timeout is 0. It means the phone will not be automatically locked. You need tolong press to lock it immediately when the phone is idle.The emergency number setting, if desired, must be made before lock activation. For moreinformation, refer to Emergency Number on page 129.