Monday, December 23, 2013

The Different Types 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.

The switches here are normally already in place. This will hereby create a private circuit for each and every phone call. Because of that, it is also referred to by many as PSTN or the Public Switched Telephone Network. It has been widely used for decades and even with the rise of other variants as technology improves, its usage has yet to falter in any major way.

The second type is utilized heavily by cellular phones. Companies can occasionally have networks that are exclusive to them. Simultaneously, what they have will vary in terms of the type and how far off their technology is. It is comparable to POTS, since it is a full duplex system. That means those on both lines may talk and listen simultaneously.

Despite that similarity, there are notable differences as well. A primary one would be the fact that the cellular variety makes use of radio frequencies as opposed to copper wire. Though these things first started out as mobile voice networks exclusively, they are not capable of carrying both data and voice.

Some of these networks are national. However, there are a few international ones and the best part is that brand new technologies are continuously being developed. 3G supports not just cell phones, but also smartphones, netbook computers and even wireless modem aircards.

Voice over internet protocol or VoIP is also called IP. This is another example of what is used today. This service piggy backs existing connections like DSL or cable services. An analog telephone adapter also serves as the mediator that connects a phone to the modem or the router.

This system can be set up with the utilization of just one line for both telephone and internet services. This is how some people save up on expenses. Rather than set up for data or voice, T1 lines can be used as a method of handling both. These are some information that concerns phone systems Chicago.




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