Hitachi WIRELESSIP TD61-2472A ユーザーズマニュアル

 

When the keylock is set, button operations are disabled. 

Press and hold down the Lock key on the side of the phone. 

 

 

 

 

Enter the password. 

Note! The default value for the password is "0000". You can change the 
password freely. (See the security section.) 

 

 

The keylock comes On.