Method of and system for extending internet telephony over virtual private network direct access lines
AssigneeWorldCom, Inc.
InventorsSteven R. Donovan, Matthew J. Cannon
Life of this patent
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Abstract
A virtual private network includes an internet protocol (IP) network and a public switched telephone network (PSTN). An enterprise gateway is operably connected to the IP network. The enterprise gateway is operably connected to a switch of the PSTN through a direct access line (DAL). The set-up signaling for virtual private network calls and the calls themselves are transported across the internet protocol network and the public switched telephone network through the direct access line.
Claims44
An apparatus for providing virtual private network services, comprising:
- an enterprise gateway
- a direct access line operably connected to the enterprise gateway;
- and
- a switch of a public switched telephone network operably connected to the direct access line.
An apparatus for providing virtual private network services between a public switched telephone network and an internet protocol network, comprising:
- a signaling gateway configured to receive telephony signaling protocol signals, the signaling gateway also configured to convert the telephony signaling protocol signals to internet telephony signal protocol signals;
- and
- a media gateway coupled to the signaling gateway, the media gateway configured to receive telephony time division multiplexed signals, the media gateway also configured to convert the telephony time division multiplexed signals to internet protocol transport signals.
An apparatus for providing virtual private network services between a public switched telephone network and an internet protocol network, comprising:
- a signaling gateway configured to receive internet telephony signal protocol signals, the signaling gateway also configured to convert the internet telephony signal protocol signals to telephony signaling protocol signals;
- and
- a media gateway coupled to the signaling gateway, the media gateway configured to receive internet protocol transport signals, the media gateway also configured to convert the to telephony time division multiplexed signals.
A method for providing virtual private network services between a public switched telephone network and an internet protocol network, comprising:
- receiving telephony signaling protocol signals;
- converting the telephony signaling protocol signals to internet telephony signal protocol signals;
- receiving telephony time division multiplexed signals;
- and
- converting the telephony time division multiplexed signals to internet protocol transport signals.
Dependencies are inferred from the claim text.