Support for fax and modem in SIP/SIP-T networks and the interworking of these networks with ISUP+/BICC
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United States of America Patent
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Jun 29, 2010
Grant Date -
Jan 19, 2006
app pub date -
Oct 17, 2003
filing date -
Nov 14, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a method for the transmission of call control parameters for switching over between a voice transfer mode and a data transfer mode between two media gateway controllers (6, 7), which are used by way of an IP network between two telecommunication terminal devices separated from any medium or bearer connection, whereby the call control parameters are transferred with conversion into the SIP or SIP_T protocol or from this into a standard signaling protocol.
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