The service for determining from which number a client has called. This helps to decide how to answer on the incoming call. A telephone company sends DNIS number to the telephone client’s system during establishing connection. As a rule, DNIS number consists from 4 to 10 digits.
Founded and headquartered in Toronto, Ontario, Canada in 2004, Vokal Communications has grown into one of the best alternative Telecommunications providers to residential and business customers. Vokal offers residential and business calling services and l
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