Cisco Cisco Unified Customer Voice Portal 11.0(1)

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Cisco Internet Service Node (ISN) Product Description
OL-1250-03
Chapter 1      Introduction
Sample ISN Call Flows
ISN Call Arrival, Prompt and Collect
 shows an ISN call arrival scenario. 
Figure 1-15 ISN Call Arrival
The call arrival flow in 
1.
The call comes into the PSTN network and is routed to the Voice Browser through a Gateway. (The 
call may have been pre-routed by NAM/ICM to the Gateway.)
2.
The Voice Browser informs the Application Server that a call has arrived. 
3.
The Application Server requests instructions of the NAM/ICM.
4.
The NAM/ICM consults the customer database/application as needed, then determines which scripts 
to run and what information to communicate. The NAM/ICM passes this information to the 
Application Server. 
5.
The Application Server creates a VXML page, which tells the Voice Browser to do. The Voice 
Browser retrieves any media files or announcements from the Media Server.
6.
The Voice Browser plays prompts or announcements over the packetized voice stream back through 
the originating Gateway to the caller and collects DTMF input as required.