The external call transfer – is the call transfer to a telephone line other than the company’s telephone line. The internal call transfer – the transfer of an incoming call to another addressee registered on the same telephone line.
Brain21, Inc.
According to the various market evaluations, the IP telephony market is respected to beyond seven billion dollars annually including VoIP (Voice over IP) equipment, protocol stacks, and IP telephony services. As a major vendor of the market for IP telepho
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