Is a telephony service allowing the distribution of telephone calls from one telephone number in the group consisting from several telephone lines, using the special algorithm, which determines the line receiving a call.
ISG | Network Billing Systems (NBS)
With state-of-the-art corporate headquarters in Wayne, New Jersey, the ISG family has evolved into a multi-divisional organization serving over 750,000 customers from coast to coast. Today ISG is positioned at the forefront of global technology with a str
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