This service allows called party to listen to the audio or video announcements of callers before connection. The caller can choose a message that will be played and conditions by which the message will be plaid over. For example, before the subscriber answers the call, they will hear audio message with the name of the person who is calling.
TERRATEL is a company providing services of designing embedded electronic and computing systems and telecommunication equipment: a full range of customized electronic design services of any complexity.