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Thứ Ba, 24 tháng 12, 2013

The Variants Of Phone Systems

By Leanne Goff


There are several phone types as well as phone systems Chicago types. There may be some that are curious as to what these things are on a much deeper level. To those interested, there are at least three main types that may be discussed further. One is the internet protocol variant, another is the plain old telephone service and then there would be cellular phone systems.

The plain old telephone service is also commonly known as POTS. It relatively old and it is directly descended from the same system that was developed by Alexander Graham Bell. This is commonly known as the landline, which most residential and commercial structures still make use of. It is also an analog service that has copper wiring.

There are multiple advantages that come with this particular variant. Some of these advantages include the use of standardized equipment as well as having predictable sound quality. Due to the direct connection it has to the central office, there is actually no need for its capacity to be shared with others who may want to make use of it as well.

All of the switches are already set in place. This creates private circuits for every phone call that is made. Because of that, many refer to it as Public Switched Telephone Network or PSTN. This is something that has been available and used for many decades, even after other variations have risen with all the improvements of technology. Its use has not yet falter in a significant manner.

Speaking of other variants, another one would be for cellular phones. There would be individual companies that are in possession of their own networks, and each of those would also be in possession of varying degrees and types of technology. Just like the POTS, this type is a full duplex system, which means both parties may talk at the same time if they so wish.

Despite its similarity, there also exists a notable difference. Such a difference comes in the form of radio frequencies, which is utilized in this variation rather than copper wire. These things started out exclusively as a mobile voice network, they are basically incapable of carrying voice and data at the same time.

Some networks are operating on a national scale. Others are even operating internationally, and one of the best parts is that new technologies are frequently being developed. 3G is known support not only cell phones, but smartphones as well, together with netbook computers and wireless modem aircards.

IP or internet protocol is frequently known as VoIP or voice over internet protocol. This is just another version used nowadays. This service is known to piggy back on existing connections, such as cable service or DSL broadband. The analog telephone adapter is a device that serves as the go between that connects phones to routers or modems.

IP systems may be set up with single lines for both telephone and internet services, which can serve as a way to save money. With the use of an integrated T1 line, rather than setting up for data or voice, such a line would be able to handle both. And that is what one can expect from the different phone systems Chicago.




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