Configures the "#" or "*" key as the send key. 
If it is set to 0 (Disabled), neither “#” nor “*” 
can be used as a send key. 
If it is set to 1 (# key), the pound key is used as 
the send key. 
If it is set to 2 (* key), the asterisk key is used as 
the send key. 
Enables or disables the IP phone to play a 
tone when a user presses a key. 
If it is set to 1 (Enabled), the IP phone will play 
a tone when a user presses a key.