Cisco Cisco Customer Voice Portal 8.0(1)
Planning Network Topology
This chapter comments on some key factors that affect network topology. For detailed discussion
of network considerations, please refer to the Cisco Unified Customer Voice Portal (CVP)
Release 4.0 Solution Reference Network Design (SRND) document.
of network considerations, please refer to the Cisco Unified Customer Voice Portal (CVP)
Release 4.0 Solution Reference Network Design (SRND) document.
This section contains the following topics:
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Selecting Codecs
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Generally, G.711 should be used.
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G.729 is typically used when RTP traffic must traverse a WAN link, in order to save
bandwidth.
bandwidth.
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ASR cannot use silence suppression and must use the G.711 codec. This applies to the entire
RTP stream, from Ingress Gateway to VXML Gateway to ASR Server; all must be G.711,
no silence suppression.
RTP stream, from Ingress Gateway to VXML Gateway to ASR Server; all must be G.711,
no silence suppression.
WAN vs. LAN
The use of WAN vs. LAN is determined by the geographic model that you have chosen. See
the discussion in the "Geographic Models" section of
the discussion in the "Geographic Models" section of
Planning Guide for Cisco Unified Customer Voice Portal 4.0(1)
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Chapter 8