Pre-alerting Announcement
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.
GXW4024 is a high density VoIP gateway, based on SIP standards and compatible with large number of IP PBX softswitch systems.
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