Understanding the Difference

Differences

The following table lists the feature and configuration differences between Cisco IOS-VB and Cisco VVB.

Feature

Cisco IOS-VB Configuration

Cisco VVB Configuration

Service/Application

Service Configuration

Application configuration in Cisco VVB

Dial-Peer

Dial peer Configuration

Trigger configuration in Cisco VVB

TCL Scripts

CVP OAMP downloaded TCL scripts:

  • bootstrap.tcl

  • CVPSelfService.tcl

  • cvp_ccb_poll.tcl

  • ringtone.tcl

  • ccb tcl scripts

AEF applications. By default, Cisco VVB includes the following prepackaged applications:

  • CVPComprehensive.aef

  • Ringtone.aef

  • Error.aef

  • SelfService.aef

  • VRUComprehensive.aef

Note

 

You can’t modify these applications.

CVP VXML documents

CVP OAMP downloaded VXML scripts:

  • bootstrap.vxml

  • CVPSelfServiceBootstrap.vxml

  • recovery.vxml

Cisco VVB has prepackaged the VXML document files for various AEF applications.

Note

 

You can’t modify these applications.

Codec config

Codec defined at dial-peer level

Codec defined at System level

MRCP Interface and Configuration

ASR/TTS configuration.

  • voice class uri

  • Using Dial-Peer to load balance ASR/TTS

ASR/TTS server configuration by specifying the hostname or IP Address of speech servers.

Load balancing is done on a round-robin basis.

Maximum sessions that can be set for a server

No such configuration

Weight-based load balancing between various servers configured

Weight-based load balancing isn’t supported.

CVP microapps dependency on MRCP v1

No dependency of CVP microapps on MRCP v1

Option to configure MRCP client timers

No option to configure MRCP client timers

HTTP cache Configuration

Various CLIs for HTTP Cache Configuration

Equivalent CLI commands to configure HTTP cache for media files

HTTP timers

Can be configured

Can be configured

Call Throttling

Based on RAI parameters (CPU and memory utilization, DSO, DSP)

Max calls supported by OVA profile.

Cisco VVB supports sending RAI information. For more details, see SIP RAI section.

Audio prompts

All prompts are played from start to end.

Cisco VVB is compliant with VoiceXML, so prompts are queued instead of being played when the Audio element is run. The queued prompts are played:

  • When the browser reaches a waiting state such as recognition.

  • When the browser fetches a resource while the fetchaudio attribute is set on the corresponding fetch element.

  • When the browser has reached the end of the application.