Question

What happens when a user attempts to make a cellular call?

a. the called number is sent to the MTSO using a traffic channel

b. the called number is sent to the MTSO using a control channel

c. only the base station is required to establish a connection between users

d. the MTSO only gets involved if the called number is on the PSTN (public switched telephone network)

Answer 1

When the user attempts to make a cellular call

MTSO knows in what cell we are when we want to ring the phone using the control channel after the MTSO gets the signal it finds the phone using the database and then pick a suitable frequency to make the call

The MTSO communicate with phone using the control channel to tell the frequencies to use to make a call

Once the mobile phone and the tower frequencies are started their frequencies then the call will connect.

so option b

the called number is sent to the MTSO using a control channel

is the correct choice.