Multiple call arrangement - allows the user to receive several calls simultaneously, even if they came by the same line. This stops the redirection of incoming calls directly to voice mail in case the line is busy or if the user is already involved in an active call.
IPgrade
IPgrade LTD, was formed as a wholesale provider of international voice services specialized in VoIP and advanced telecommunications solutions.IPgrade owns, operates and maintains communications infrastructure worldwide, providing high quality services and
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