Group Paging
A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
Call Shop Billing system allows you to grant your customers with a credit by making payment before they make an actual call.
IDP
NGN Consulting has focused on the wholesale carrier opportunities resulting from the rapidly growing demand for capacity between the United States and international niche markets. NGN Consulting has delivered a wide range of IT and communications advice
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