Auto-attendant
Allows subscribers being automatically transferred to the additional line without the intervention of the operator/registrar.
Auto-attendant also allows the subscriber making connection with the operator, dialling the number “0”. The auto-attendant usually introduces a business telephone system, for instance, mini-ATC.
It is a type of communication between two ordinary phones, which are connected and voice transmits over telecommunication network.
Voitel
Voitel, a primeira empresa de VoIP do Brasil, atua no mercado desde 1998 oferecendo servi
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