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.
Hardware, Hosted VoIP billing service provider, Incumbent PTT, International VoIP Wholesale Provider, Internet Telephony Service Provider, Internet VoIP and Video Conferencing Service Provider, Network Service Provider, SIP Billing, VoIP Billing Software
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