Considering that multiple users occupy the same channel when using CDMA, how are various calls using this technology kept separate?
a. The packets are coded such that individual calls can be distinguished.
b. The packets include the end user's SIM IMEI in each packet.
c. The sending and receiving of data is performed on different frequencies. Users hop between these frequencies to avoid interference.
d. The transmissions are encrypted, such that only the appropriate device can decrypt its own call.
ANSWER: a
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