Many enterprises at present, with the expansion of business, mainly in different regions and countries, opened a lot of branches, internal telephone communication is very frequent, long distance and international telephone communications costs is enterprise of a heavy spending, IPCall users a wide range of market survey, use the Internet phone can save between the branches of the internal communications costs more than 50%, especially in internal communications, can be implemented with zero cost and IPCall voip solutions, not only for your company to save communication cost, and at the beginning of the telephone network construction, for the customer to choose a kind of effective, low cost solution, has been used in many places,
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