Which default code on Cisco IP phones is used to unlock the manual configuration of items such as network configuration settings?
A. #**
B. 123456789*0#
C. #0*987654321
D. **#
Which default code on Cisco IP phones is used to unlock the manual configuration of items such as network configuration settings?
A. #**
B. 123456789*0#
C. #0*987654321
D. **#