User Guide for the SIP-T41P IP Phone262. Press or , or the Switch soft key to select Disabled from the Phone LockEnable field.3. Press the Save soft key to accept the change.Phone lock is configurable via web user interface at the path Features->Phone Lock.You can press the volume key to adjust the ringer volume when the phone is idle. Youcan also press the volume key to adjust the receiver volume of currently engaged audiodevices (handset, speakerphone or headset) when the phone is in use.To adjust the volume when the phone is idle:1. Press to adjust the ringer volume.NoteTo adjust the volume when the phone is during a call:1. Press to adjust the volume of currently engaged audio device (handset,speakerphone or headset).Ring tones are used to indicate incoming calls. You can select different ring tones todistinguish different accounts registered on your phone, or to distinguish your phonefrom your neighbor’s.If the ringer volume is adjusted to minimum, the icon will appear on the LCD screen.