What is the name given to the special frequency that a cellular phone and base station use for exchanging call-setup information?
A) W-CDMA
B) cell tunnel
C) control channel
D) GB line

Question

Quizplus · Accepted Answer

The special frequency that a cellular phone and base station use for exchanging call-setup information is called the control channel. It is used to establish a connection between the mobile device and the base station, and to transmit information such as the phone number being called and the identity of the caller. Option A, W-CDMA, is a type of cellular network technology. Option B, cell tunnel, is not a term commonly used in the telecommunications industry. Option D, GB line, is also not a term commonly used in telecommunications.

What Is the Name Given to the Special Frequency That