s do not have to sample every height on the sound wave to achieve high-quality sound. They might skip silence or predict the next sound, based on the previous sound. Thus, fewer bits per second are transmitted to represent the speech. Computing and Enabling Technologies INCREASING NETWORK CAPABILITIES VIA MULTIPLEXING Multiplexing combines traffic from multiple devices or people into one stream SO that they can share a circuit or path through a network. Each source does not require a separate, dedicated link. Like compression, companies and carriers can use multiplexing to send more information on wireless airwaves, fiber networks, and internal Local Area Networks (LANs). However, unlike compression, multiplexing does not alter the actual data sent. Rather, the multiplexer at the transmitting end combines messages from multiple devices and sends them on the same wire, wireless, or fiber medium to their destina- tion, whereupon a matching device distributes them locally. One important goal is to make more efficient use of the most expensive portion of a carrier's network SO that the carrier can handle the vast amounts of traffic generated by devices such as smartphones (multipurpose mobile phones with both Internet access and voice capabilities) and computers. Multiplexing is also used by enterprises that link offices together or access the Internet by using only one circuit (a path between sites) rather than paying to lease multiple circuits from their provider. The two most commonly used types of multiplexing are time division and statistical. Time-Division Multiplexing Time-Division Multiplexing (TDM) is a digital multiplexing scheme that saves capac- ity for each device or voice conversation. Once a connection is established, capacity is saved even when the device is not sending information. For example, if a call is put on hold, no other device can use this spare capacity. Small slices of silence with thousands of calls in progress result in high amounts of unused network capacity. This is the reason TDM is b