Cisco Cisco Unified Customer Voice Portal 10.0(1)

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(2000*4)*2 ms = 8 to 16 seconds, it will raise an error event and survivability will be invoked.
(The factor of 2 is a built-in IOS factor that cannot be configured. Do not adjust these values
lower as this could cause the survivability event to be prematurely invoked.)
For a Unified CVP Standalone call flow model:
Define one service:
application
service survive flash:survivability.tcl
Note: Be careful to type the service name "survive" exactly as shown.
Optionally, start a background keepalive service to the VXML Server:
For example, for a service name of "my-standalone-service":
service my-standalone-service
param keepalive my-standalone-service
Note: This will prevent the caller from hearing a period of silence at the start of each call if
the VXML Server is down, as the gateway will know the current status of the VXML Server.
Step 3
On the gateway, do a "call appl voice load survive" and "call appl voice load handoff."
Step 4
Do the following:
On a Unified CVP Comprehensive call flow model:
Create a Unified CVP pots dial-peer on the gateway, placing the Unified CVP called number
on an incoming-called-number parameter.
Assign the "survive" service to this dial-peer.
On a Unified CVP Standalone call flow model, no special survivability dial-peer needs to be
created. Survivability will automatically be invoked by the Unified CVP Standalone script if
the "survive" service exists.
How to Configure the Gateway for Call Survivability
You can configure the following parameters on the gateway for call survivability:
open-hours-agent - The destination recovery target DNIS to be used when the currenttime
matches any open-hours-time parameter. The script will cycle through all agents sequentially
until one answers. If no one answers, (or in the case of a takeback transfer, the PSTN does
Configuration and Administration Guide for Cisco Unified Customer Voice Portal Release 4.1(1)
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Chapter 13: Transferring and Queuing Calls with Unified CVP
Call Survivability