324Patterns: Pervasive and Rich Device Access Solutions
WebSphere Voice Application Access does not include the WebSphere Voice
Response (WVR) server that provides both connectivity to most PBX systems for
call control or that can function independently for call input. WVR is just one of a
range of options for managing the call control requirements and any
VoiceXML-compatible system could be deployed. WVR provides robust, scalable
performance for the ITSO requirements and has options for complete re-use of
development if ITSO Railways decides to change from PSTN to Voice over IP
(VoIP) in the future (WVR accomplishes this by changing the T1/E1 cards for
PBX connectivity to SIP cards for VoIP connectivity). This means that any
development ...
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