Patent application number | Description | Published |
20090116477 | Signaling Referring to Setup of H.324 Video Telephone Between Media Gateway and Controller - A video telecommunication connection is established via a landline telecommunications network and an IP multimedia subsystem telecommunications network using a media gateway control function of at least one Internet multimedia-media gateway device in the IP multimedia subsystem telecommunications network. An H.223 multiplex level usable for a telecommunication connection is exposed to an H.223 protocol negotiation, in carrying out an H.245 protocol negotiations for setting up the H.223 protocol negotiations connection for a telecommunication connection. A media gateway control function device is informed when the H.223 logic channels are open by H.245 signaling, thereby enabling the Internet multimedia-media gateway device of the IP multimedia subsystem telecommunications network to carry out at least part of the setup. | 05-07-2009 |
20090232147 | Method for Forwarding Signalling Data in an Interworking Unit and in a Control Unit and Coprresponding Devices - The embodiments relates to, among other things, a network interface unit (IM-MGW) in which signaling data is separated from useful data by the values of received data. The signaling data is tunneled to a control unit (MGCF). Two different data transmission networks (CS, IMS) can thus be simply combined, in particular, for video telephony. | 09-17-2009 |
20090290573 | Method for Establishing a Video Telephone Connection and/or a Multimedia Telephone Connection in a Data Network - A method establishes a video telephone connection in a data network that includes a telephone network and an IP network based on the internet protocol. The expression video telephony connection is to be taken generally in this context and encompasses multimedia telephony in addition to pure video telephony. | 11-26-2009 |
20110181682 | Method for the transmission of signalling data in a network interface unit and in a control unit and corrsponding devices - The embodiments relate to, among other things, a network interface unit (IM-MGW) in which signaling data is separated from useful data by the values of received data. The signaling data is tunneled to a control unit (MGCF). Two different data transmission networks (CS, IMS) can thus be simply combined, in particular, for video telephony. | 07-28-2011 |