Method for providing telephone services through XDSL connection lines
View Patent ↗The inventive method uses a VoIP server which provides the classical subscriber performance features of an exchange, and a VoIP client in the integrated access device (IAD) of the subscriber. The VoIP server uses a known VoIP signalling protocol for controlling the VoIP voice transmission between the VoIP client in IAD and the media gateway and for tunneling the PSTN/ISDN signalling between the VoIP client in the IAD and the VoIP server.
1. A method for making telephony services available by way of xDSL connection lines, comprising:
providing a transport protocol connection for the voice channel, and another transport protocol connection is used for the signaling to implement a telephony service;
controlling the voice transmission between the IAD and the MG, using VoIP signaling, and for transparent transmission of the PSTN/ISDN signaling between the IAD and the VoIP controller;
converting voice between VoIP and TDM using a media gateway;
providing a VoIP controller to handle the PSTN/ISDN signaling, terminate the VoIP signaling protocol and for tunneling of the PSTN/ISDN signaling, and control the media gateway; and
providing an xDSL access device to terminate the two ATM connections for voice and signaling, convert the voice transmission between VoIP and the terminal connection, terminate the VoIP signaling protocol and for tunneling of the PSTN/ISDN signaling, and bringing together the voice and PSTN/ISDN signaling and the terminal connection for the subscriber terminals connected with the xDSL access device is operated.
2. A telephony service system, comprising:
a VoIP server to provide conventional subscriber features of a subscriber switching center available;
an xDSL access device that includes at least one subscriber connection, and that converts the VoIP voice and the PSTN/ISDN signaling tunneled by way of the VoIP signaling protocol to the conventional voice transmission and signaling methods at a subscriber connection; and
a media gateway to convert the voice between VoIP and TDM, wherein
the VoIP server is configured to use a known VoIP signaling protocol to control the VoIP voice transmission between the xDSL access device and the media gateway and for tunneling the PSTN/ISDN signaling between the xDSL access device and the VoIP server.
3. A VoIP server to provide conventional subscriber features of a subscriber switching center available, and that is configured to use a known VoIP signaling protocol to control the VoIP voice transmission between an xDSL access device and a media gateway, and for tunneling a PSTN/ISDN signaling between the VoIP server and the xDSL access device, wherein the xDSL access device converts the VoIP voice and the PSTN/ISDN signaling tunneled by the VoIP signaling protocol a conventional voice transmission and signaling methods at a subscriber connection.
4. An xDSL access device to terminate two transport protocol connections for voice and signaling, convert voice transmission between VoIP and a terminal connection, terminate a VoIP signaling protocol and use it for tunneling the PSTN/ISDN signaling between a VoIP server and the xDSL access device, and bring the voice and PSTN/ISDN signaling together and operate the terminal connection for subscriber terminals, wherein the VoIP server provides conventional subscriber features of a subscriber switching center and uses known VoIP signaling protocol to control the VoIP voice transmission.