What is SS7?

While the term SS7 is commonly used in the United States, it is not a shortcut around the world. Here are several facts about the nature, function and applications of SS7 technology around the world, including other names for the system.

With the own name of the signaling system No. 7, the SS7 technology is a set of signaling protocols developed specifically for telephone communication protocols. These protocols originally developed by AT&T in 1975 provide support for publicly switched telephone networks around the world. The name used to identify the protocols varied from place to place. For example, the SS7 technology is simply known as the C7 in the UK, CCSS7 in other parts of North America and recently as ITU-T in other parts of the world.

SS7 was originally designed to replace earlier signaling technology that began to experience more failure as a demand for voice communication with CEIt increased the world. With earlier versions of signaling protocols, the signaling process was the basis of the setting process for starting calls activated by playing special tones into the lines. These earlier technologies, referred to as bearers' channels, have become problematic because the touch tone technology has led to the people who found that the special keys used by the operators used to start these protocols. The device that could emit a number of tones and thus interfere with the work combination began to cause quite confusion and, in some cases, would overload the already busy communication grid.

The

SS7 technology has solved both problems at once. Moving to signal protocols that were protected and outside the band could not be mimiced to trigger telephone activity. This effectively eliminated the kidnapping of telephone channels and released the Communiccions grid processes legitimate requests for voice communication. Enlargement to the tones of bands also allowILO of the phone network in a number of possible countries, as new channels could be added as needed.

The SS7 also made a number of new services to subscribers to phones. For example, many of us have become accustomed to using star commands (*) to appear the last number, tone tone dialing, or access to the voice mailbox. Creating the SS7 has also led to a number of support services that clients of various acre conference calls can enjoy, such as the ability to dial a participant, signal the assistance of the operator, start a record and a list of other options that help control the conference.

with the marriage of voice communication and the Internet, the SS7 has shown that it is perfectly compatible with the options of online phone services, allowing what is called Switch for a dedicated service without any problems. In other Words, someone who uses an internet phone service is still able to call someone who uses traditional fixed services, without degradation in sound clarityi. This is possible thanks to the SS7 protocols, as well as the growing use of voice internet protocol (VoIP) to process international telephone calls.