Apparatus and method for developing applications with telephony functionality
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United States of America Patent
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Feb 12, 2008
Grant Date -
Dec 23, 2004
app pub date -
Oct 9, 2003
filing date -
Jun 5, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
One embodiment of the present invention provides a system that facilitates developing applications with telephony functionality. The system includes a session initiation protocol (SIP) gateway configured to interface with a public switched telephone network (PSTN). The SIP gateway translates telephone calls from telephones coupled to the PSTN to SIP protocol messages. A SIP server coupled to the SIP gateway accepts these SIP protocol messages and an application server accesses a voice extensible markup language (VXML) page on behalf of the SIP server. A VXML gateway provides access to the VXML page by a users of the telephones.
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