Voice over IP network architecture
First Claim
1. A next generation public telephone network comprising at least two network domains, each of said network domains comprising a Softswitch for provisioning connections for packetized transport of user sessions within the corresponding network domain, wherein said at least two network domains are interconnected using at least one Session Border Controller acting as packet-to-packet gateway between said at least two network domains, wherein an interconnection network comprising an number of Session Border Controllers, wherein at least a first of said Session Border Controllers is connected to a first of said at least two network domains and at least a second of said Session Border Controllers is connected to a second of said at least two network domains, said interconnection network further comprising a dedicated Softswitch for provisioning connections between selected ones of said Session Border Controllers.
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Accused Products
Abstract
A network architecture for a next generation network which contains at least two domains and a method of transmitting a call using voice over IP technique over at least two network domains are presented, wherein instead of point-to-point connections between the two network domains, an interconnection domain is provided which contains a number of Session Border Controllers and at least one Softswitch for provisioning connections between selected ones of said Session Border Controllers.
233 Citations
6 Claims
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1. A next generation public telephone network comprising at least two network domains, each of said network domains comprising a Softswitch for provisioning connections for packetized transport of user sessions within the corresponding network domain, wherein said at least two network domains are interconnected using at least one Session Border Controller acting as packet-to-packet gateway between said at least two network domains,
wherein an interconnection network comprising an number of Session Border Controllers, wherein at least a first of said Session Border Controllers is connected to a first of said at least two network domains and at least a second of said Session Border Controllers is connected to a second of said at least two network domains, said interconnection network further comprising a dedicated Softswitch for provisioning connections between selected ones of said Session Border Controllers.
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6. A method of establishing a call from a calling subscriber to a called subscriber over at least two network domains of a next generation public telephone network, wherein said calling subscriber is located in a first of said at least two network domains and wherein said called subscriber is located in a second of said at least two network domains, said method comprising the steps of:
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sending signaling information from said calling subscriber to a first Softswitch assigned to said first network domain, provisioning a connection from said calling subscriber through said first network domain to a first Session Boarder Controller under control of said first Softswitch, transferring signaling information from said first Softswitch to a second Softswitch, provisioning a connection from said first Session Boarder Controller to a second Session Boarder Controller under control of said second Softswitch, transferring signaling information from said second Softswitch to a third Softswitch assigned to said second network domain, and provisioning a connection though said second network domain from said a second Session Boarder Controller to said called subscriber under control of said third Softswitch.
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Specification