H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 3/42 (2006.01) H04M 3/56 (2006.01) H04M 7/00 (2006.01)
Patent
CA 2339759
Telephony services are implemented using a media-control framework in which a media switch controls the mixing of multiple participant streams. A connection is established between the media switch and each of the participants in a given call or other communication. The media switch then implements a desired telephony service by controlling the mixing of media streams in accordance with multiple permit sets and multiple want sets, each of the permit sets and each of the want sets being associated with a given media stream of a given participant. A particular one of the permit sets specifies one or more additional participants that are permitted to receive a send flow of the given stream in conjunction with the telephony service, while the corresponding one of the want sets specifies one or more additional participants from which the given participant wants to receive a receive flow of the given stream in conjunction with the telephony service. The media switch utilizes the permit sets and the want sets to generate onto each receive flow for the one or more media streams the mix of all the send flows for the one or more media streams that satisfy the specified permissions and wants. The media switch may be implemented in a nondistributed manner, or in a distributed manner with a switch controller and one or more mixers.
Kirby Eades Gale Baker
Lucent Technologies Inc.
LandOfFree
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