Manualsbrain.com
  1. Manuales
  2. Marcas
  3. Cisco
  4. Cisco Unified Customer Voice Portal 10.0(1)
  5. Guía Para Resolver Problemas

Cisco Cisco Unified Customer Voice Portal 10.0(1) Guía Para Resolver Problemas

Descargar
Página de 2
CVP "wan−delay−ringback" Configuration in the
Survivability.tcl Script to Mitigate Network Latency
Effects
Document ID: 116448
Contributed by Tian Lei Xia, Cisco TAC Engineer.
Aug 16, 2013
Contents
Introduction
Problem
Solution
Introduction
This document describes the problem and solution when the network latency between a Customer Voice
Portal (CVP) server and Voice XML (VXML) gateway approaches or exceeds 200ms round trip.
Problem
The network latency between a CVP server and VXML gateway is expected to be much less than 200ms
round trip. If the round trip time approaches or exceeds this, CVP Interactive Voice Response (IVR)
performance is severely impacted as follows:
Call drops.
• 
No VXML app audio played.
• 
The microapp works fine, but VXML apps (such as the helloworld app) experience no audio or audio
delays over 5 seconds.
• 
Solution
The network latency section in the CVP 8 Solution Reference Network Design (SRND) describes a potential
workaround to reduce the effect of delayed audio from a VXML application due to network latency between
the VXML server and the VXML gateway. This workaround is to configure the survivability Tool Command
Language (tcl) script and activate the "wan−delay−ringback" feature.  A configuration example is shown in
this survivability.tcl script snippet: