Voice over IP voice mail system configured for placing an outgoing call and returning subscriber to mailbox after call completion
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United States of America Patent
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May 11, 2004
Grant Date -
N/A
app pub date -
Jan 7, 2000
filing date -
Jan 7, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An IP telephony gateway and a voice mail resource enable a voice mail subscriber to place an outgoing call to a destination party from a voice mail session via a first Real Time Protocol (RTP) data stream according to the voice over IP (H.323) protocol, and resume the voice mail session upon completion of the outgoing call with the destination party. The voice mail resource initiates a second RTP data stream to a destination party, and uses the Empty Capability Set feature in the H.323 standard to cause the IP telephony gateway to close the first and second RTP data streams to the voice mail resource. The voice mail resource then issues Non-Empty Capability Set messages to the IP telephony gateway for the first and second RTP data streams, causing the IP telephony gateway to internally bridge the first and second RTP data streams, and later to resume the voice mail session.
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