Communication apparatus, method of controlling communication apparatus and control program for communication apparatus
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United States of America Patent
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N/A
Issued Date -
May 24, 2007
app pub date -
Aug 24, 2005
filing date -
Aug 25, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention realizes, utilizing a call control process according to SIP, detection of the condition of in terms of capableness/incapableness of receiving of the destination station and notification of restoration to a condition capable of receiving thereby eliminating troublesome operations such as telephonic communication etc.
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