The prefix that a user types to control the current session. The default value is hex 01, which corresponds to Ctrl-a (^a) (hex value 02 would be Ctrl-b (^b), etc.): ^a number-To switch from one session to another, press ^a and then the required session number. For example, ^a 2 would switch you to session 2. Pressing ^a 0 will return you to the Device Server Menu. ^a n-Display the next session. The current session will remain active. The lowest numbered active session will be displayed. ^a p-Display the previous session. The current session will remain active. The highest numbered active session will be displayed. ^a m-To exit a session and return to the Device Server. You will be returned to where you left off. The session will be left running. ^a l-(Lowercase L) Locks the line until the user unlocks it. The user is prompted for a password (any password, excluding spaces) and locks the line. Next, the user must retype the password to unlock the line. ^r-When you switch from a session back to the Menu, the screen may not be redrawn correctly. If this happens, use this command to redraw it properly. The User Hotkey Prefix value overrides the Line Hotkey Prefix value. You can use the Hotkey Prefix keys to lock a line only when the line Lock parameter is On.