User manual

Chapter 13, Whisper Messaging
Sequence Event
5
After completing the message, the switch connects the caller to the
destination station.
Table 11 shows three different sources can play whisper messages. If the system database
does not define at least one whisper message source, the switch immediately connects
calls to their destinations, skipping whisper messages.
Table 11. Whisper Message Sources
Source Description Switch Database
Requirements
IVC Device When playing a whisper message from
an IVC device, the system identifies a
message by its unique phrase group and
phrase ID combination. The system
acquires the device from a specified IVS
group, connects the destination phone to
the device, and plays the appropriate
message.
• IVS group
• IVS phrase group
• IVS Phrase ID
Announcement
Trunk
When playing a whisper message from an
announcement trunk, the system may send
it optional information from a Prefix Digit
Table (PDT). The PDT information can
include a message number, digits, or both.
If it receives PDT information, the trunk
will play the message and any digits
specified by the PDT. If it does not receive
optional PDT information, the trunk
simply waits for the duration of the Voice
Response Unit (VRU) message time.
The VRU message time is a System
Parameter (SPAR) parameter.
• Announcement
trunk group
• PDT information
(optional)
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