Cisco Cisco Unified Customer Voice Portal 11.0(1)

Figure 4: VRU-Only Call Flow

1. New call is passed from PSTN to Unified ICME.

2. Unified ICME queues the call by sending a temporary Connect to VRU request to PSTN.

3. PSTN establishes audio connection with VXML Gateway.

4. VXML Gateway passes new call message to IVR Service.

5. IVR Service passes new call message to ICM Service.

6. ICM Service sends Requests Instruction to Unified ICME.

7. Unified ICME sends Run Script request to ICM Service.

8. ICM Service sends Run Script request to IVR Service.

9. IVR Service creates VoiceXML pages based on Run Script instructions received from

Unified ICME and sends the VXML pages to VXML Gateway where the appropriate
micro-application is executed.

10. The execution of the micro-application/script invokes the VXML Gateway's prompt/collect

capabilities (possibly using ASR/TTS or VXML Server) and sends result to IVR Service.

11. IVR Service sends result to ICM Service.

12. ICM Service sends result to Unified ICME.

13. Unified ICME sends Run Script request to ICM Service.

14. ICM Service sends Run Script request to IVR Service.

15. IVR Service creates VoiceXML pages based on Run Script instructions received from

Unified ICME and sends the VXML pages to VXML Gateway where the appropriate

Planning Guide for Cisco Unified Customer Voice Portal Cisco Unified Customer Voice Portal 4.1(1)