CDMA uses a spread-spectrum technique whereby electromagnetic energy is spread to allow for a signal with a wider bandwidth.

CDMA uses a spread-spectrum technique whereby electromagnetic energy is spread to allow for a signal with a wider bandwidth. This allows multiple people on multiple cell phones to be multiplexed over the same channel to share a bandwidth of frequencies.

With CDMA technology, data and voice packets are separated using codes and then transmitted using a wide frequency range. Since more space is often allocated for data with CDMA, this standard became attractive for high-speed mobile Internet use.