Thomas Kunz
Systems and Computer Engineering
10
AMPS: Call Initiation
–user enters
number and presses SEND
–phone sends
number to be called and own identity on access channel (random
access channel), retry in case of collision
–MTSO looks
for idle channel (if caller is customer of MTSO’s company or one of its
partners) and sends back channel number on the control
channel
–mobile phone switches to the selected voice channel and
waits until the called party picks up the phone