Security
*72#
X
#72*
X
56
Security
You can block your extension in order to prevent unauthorized use
of your telephone, e.g. if your external calls are placed on a specific
account number.
Block extension
Dial to block your extension
Verification tone.
Press to finish the procedure
Un-block extension
Dial
z
Dial your password
#
Press to re-open
Verification tone. Your extension is open for use.
Press to finish the procedure
BusinessPhone – Basic Telephone