Cisco Cisco Unified Customer Voice Portal 10.0(1)

Figure 4: Unified CVP Comprehensive Call Flow Example

The basic steps in the call flow, as shown in the diagram, are:

1. The caller dials a specific number (called the "dialed number" or DN) using an analog

phone connected to the ingress gateway's FXS port (or a VoIP phone connection, if using
the alternate form of these exercises).

2. The ingress gateway matches the DN with a "dial peer" which is configured for specific

handling based on the DN. In this case, the DN is associated with instructions for handling
a call using a comprehensive call flow application of CVP using SIP.

3. The ingress gateway sends the dial-peer information about the DN to the CVP call server

using SIP.

4. The call server forwards this information to the Unified ICM router through the PG.

5. Based on the DN, ICM associates this call with a call type and accesses the user-defined

"run external script" for that call type.

6. In this case, the ICM script contains only information to launch the HelloWorld (or

customhelloworld) application on the VXML server. The ICM router sends this information
back to the call server.

7. The call server instructs the voice browser to launch the application from the VXML

server.

8. The voice browser requests HelloWorld or customhelloworld from the VXML server.

9. The voice browser forwards the audio response to the ingress gateway.

10. The ingress gateway responds to the caller.

Getting Started with Cisco Unified Customer Voice Portal Release 8.0(0)