Common Requirements For International Gateway Exchanges
Whereas international gateway exchanges are commonly implemented using hardware that could also serve to build a Class 4 (national transit) switch, some of the differences between an international gateway exchange and a Class 4 switch include:
- International variants of signalling protocols, such as International ISUP and #5, in addition to the relevant national signalling protocols.
- Support for echo cancellers.
- Support for DCME
- Support for international accounting and settlement agreements.
- Support for A-law/mu-law transcoding
- High capacity (some of the largest telephone exchanges in the world are international gateway exchanges).
- Support for the numbering plans of each of the countries that may be dialed.
- Advanced traffic routing capabilities, in order to take advantage of the best available tariffs for each destination.
Read more about this topic: International Gateway Exchange
Famous quotes containing the words common, gateway and/or exchanges:
“Just as language has no longer anything in common with the thing it names, so the movements of most of the people who live in cities have lost their connexion with the earth; they hang, as it were, in the air, hover in all directions, and find no place where they can settle.”
—Rainer Maria Rilke (1875–1926)
“The whole fauna of human fantasies, their marine vegetation, drifts and luxuriates in the dimly lit zones of human activity, as though plaiting thick tresses of darkness. Here, too, appear the lighthouses of the mind, with their outward resemblance to less pure symbols. The gateway to mystery swings open at the touch of human weakness and we have entered the realms of darkness. One false step, one slurred syllable together reveal a man’s thoughts.”
—Louis Aragon (1897–1982)
“When a girl marries, she exchanges the attentions of all the other men of her acquaintance for the inattention of just one.”
—Helen Rowland (1875–1950)