It was once thought that people wouldn't be interested in video conferencing cell phones because they couldn't use them on the move (in other words, they'd be walking down the sidewalk bumping into people or lampposts while they tried to use the feature). But the popularity of texting, which is equally as hazardous, eliminated this doubt, and major cell phone companies now are equipping cell phones with the feature and beefing up networks.
The major challenge to transmitting digital video is that it requires sending a great deal of data -- much more data than audio requires. So, a cell phone with video conferencing needs to be able to send and receive a large amount of information. If you've read How Cell Phones Work, you know that, although modern cell phones are digital mechanisms, they send information over radio signals and only have a limited amount of bandwidth with which to work. Bandwidth, which is really a range of frequencies, can be expressed in units -- such as, thousands of bits per second (kbps) or millions of bits per second (Mbps). Bandwidth is an indication of how much (and how fast) data can be sent over a given communication link.
The major challenge to transmitting digital video is that it requires sending a great deal of data -- much more data than audio requires. So, a cell phone with video conferencing needs to be able to send and receive a large amount of information. If you've read How Cell Phones Work, you know that, although modern cell phones are digital mechanisms, they send information over radio signals and only have a limited amount of bandwidth with which to work. Bandwidth, which is really a range of frequencies, can be expressed in units -- such as, thousands of bits per second (kbps) or millions of bits per second (Mbps). Bandwidth is an indication of how much (and how fast) data can be sent over a given communication link.
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