Cisco Cisco Unified Customer Voice Portal 11.0(1)

In the Comprehensive mode of CVP there is also a switched transfer that occurs when there is a need to 
perform ASR/TTS IVR treatment. In this case, the transfer is always to a Cisco VXML-enabled voice 
gateway. Only voip dial-peers are involved in that transfer (no pots dial-peer). The target voip dial-peer 
must be configured for G711Ulaw since that is the only codec that is supported as of this writing by the 
known ASR/TTS vendors.

For more information on Prompt Codec and IPCC Transfer Codec commands, see the Cisco Customer 
Voice Portal (CVP) Configuration and Administration Guide. 

The CVP uses a Gatekeeper to determine the correct VoIP endpoint to transfer calls to when it uses the 
IP mode. In 

, our endpoints are two Voice Gateways, Moe and Larry, which provide redundant 

access to a call center ACD. Moe has the IP address 10.10.10.1, while Larry has the IP address 
10.10.10.2. For simplicity’s sake, we assume the Gateways and the CVP are in the same H.323 zone, 
controlled by Gatekeeper Stooge.

In this example, the ACD uses a numbering plan in the format xxxxyyzzzz, where:

xxxx is a location code. 

yy is the destination trunk group on the ACD.

zzzz is the DNIS (Dialed Number Identification Service), identifying an ACD agent skill group, 
service, extension, etc. 

The CVP initiates the transfer using all these digits:

The Gatekeeper uses the xxxx digits to determine a destination Gateway (8888 for the ACD in our 
example).

The Gateway uses the yy digits to determine the correct ACD trunk group. 

The Gateway outpulses the zzzz digits to the proper ACD trunk group, which uses them to connect 
the call to an agent.