Cisco Cisco Customer Voice Portal 8.0(1) Design Guide
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Cisco Unified Customer Voice Portal (CVP) 8.x Solution Reference Network Design (SRND)
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Chapter 2 Functional Deployment Models
VRU Only
failure indication to Unified ICM. This scenario causes a Router Requery operation. The Unified ICM
routing script then recovers control and has the opportunity to select a different target or take other
remedial action.
routing script then recovers control and has the opportunity to select a different target or take other
remedial action.
VRU Only
This functional deployment model provides self-service applications and queueing treatment for
organizations that are utilizing advanced PSTN switching services that are controlled via a Cisco Unified
ICM PSTN Network Interface Controller (NIC). Two Unified ICM PSTN NICs are available that allow
subsequent call control of calls in the PSTN. They are the SS7 NIC and the Carrier Routing Service
Protocol (CRSP) NIC. These NICs go beyond allowing Unified ICM to pre-route calls intelligently to
Unified ICM peripherals (such as ACDs and IVRs); they also allow Unified ICM to invoke mid-call
transfers in the PSTN.
organizations that are utilizing advanced PSTN switching services that are controlled via a Cisco Unified
ICM PSTN Network Interface Controller (NIC). Two Unified ICM PSTN NICs are available that allow
subsequent call control of calls in the PSTN. They are the SS7 NIC and the Carrier Routing Service
Protocol (CRSP) NIC. These NICs go beyond allowing Unified ICM to pre-route calls intelligently to
Unified ICM peripherals (such as ACDs and IVRs); they also allow Unified ICM to invoke mid-call
transfers in the PSTN.
illustrates this model.
Figure 2-3
Functional Deployment Model for VRU Only
A typical call in this model would be pre-routed by Unified ICM to a Unified CVP Ingress Voice
Gateway for call treatment and queueing. When an agent becomes available, Unified ICM instructs the
PSTN to transfer the call to that agent. The agents can be Cisco Unified Contact Center Enterprise
agents, Cisco Unified Contact Center Express agents, or traditional ACD agents. If necessary, Unified
ICM can request the PSTN (via the NIC) to transfer the call again and again, just as Unified ICM can
request Unified CVP to transfer the call again and again. In this functional deployment model, the
Unified CVP Ingress Voice Gateway is just a Unified ICM-managed PSTN termination point that is
capable of providing VRU services via a VoiceXML gateway, the Unified CVP Server IVR Service, the
Unified CVP Server ICM Service, and Unified ICM. In this functional deployment model, neither the
Unified CVP Server H.323 Service nor the Unified CVP Server SIP Service is used for call control. All
call control and switching is controlled by Unified ICM and the PSTN. In this functional deployment
model, Unified ICM can pass call data between these termination points (for a screen pop or other
intelligent treatment) and provide cradle-to-grave reporting for all calls.
Gateway for call treatment and queueing. When an agent becomes available, Unified ICM instructs the
PSTN to transfer the call to that agent. The agents can be Cisco Unified Contact Center Enterprise
agents, Cisco Unified Contact Center Express agents, or traditional ACD agents. If necessary, Unified
ICM can request the PSTN (via the NIC) to transfer the call again and again, just as Unified ICM can
request Unified CVP to transfer the call again and again. In this functional deployment model, the
Unified CVP Ingress Voice Gateway is just a Unified ICM-managed PSTN termination point that is
capable of providing VRU services via a VoiceXML gateway, the Unified CVP Server IVR Service, the
Unified CVP Server ICM Service, and Unified ICM. In this functional deployment model, neither the
Unified CVP Server H.323 Service nor the Unified CVP Server SIP Service is used for call control. All
call control and switching is controlled by Unified ICM and the PSTN. In this functional deployment
model, Unified ICM can pass call data between these termination points (for a screen pop or other
intelligent treatment) and provide cradle-to-grave reporting for all calls.
270618
Customer Data
servers
PSTN
VXML
GED-125
MRCP/RTSP
IOS
Gateway
PSTN Switch
or PGW
or PGW
ASR/TTS
CVP
Call server
ICM
PSTN NIC
V
Unified CVP
VXML server
Backend
Interface
Interface