Cisco Cisco Customer Voice Portal Downloads

N/A

Pre-established
relationship.

Request Instruction from IVR Service to VRU PG and Unified
ICME

N/A

Pre-established
relationship.

Micro-application Request from Unified ICME and VRU PG to
IVR Service

N/A

Pre-established
relationship.

VXML Micro-application Request from IVR Service to VXML
Gateway

- If the request is a
micro-application request,

CSS can be used to scale
ASR/TTS requests to an

Request from VXML Gateway to MRCP Server

and CSS is not used, then

array of servers. If no

the Unified ICME routing

CSS is used, then those

script can identify a locale

requests which originate

name, which maps to an

as micro-applications can

ASR/TTS server with one

support one primary and

backup. IVR Service

one backup ASR/TTS

always tries the primary

server for each locale.

ASR or TTS Server first,

Without a CSS, requests

and fails over to the

from VXML Server

backup if necessary,

applications can only go

remaining there for the

to a single ASR/TTS

life of the call.

server defined in the
gateway.

Subsequent calls try the
primary first again.

- If the request originates
from a VXML Server
script and CSS is not
used, then there is no
automatic failover to a
backup ASR/TTS server.

- In either case, if a CSS
is used, it implements its
own automatic failover to
an array of ASR/TTS
servers.

IVR Service always tries
the primary Media Server

Unified ICME routing
script identifies a Media

Request from VXML Gateway to Media Server

first, and fails over to the

Server and one backup, or

backup if necessary,

if CSS is used, an array of

remaining there for the

Media Servers can be
used.

life of the call.
Subsequent calls try the
primary first again. Note
that most files fetched
from the Media Server
remain cached on the
VXML Gateway. This

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