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7304986 |
ATM-based distributed network switching system
A distributed network switching system includes a data network. The system also includes multiple access interworking function (A-IWF) devices each operating as a gateway that enables customer...
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7286492 |
Private branch exchange (PBX) conditioning method and apparatus
Method for maintaining a virtual presence of a first remote telephone user in a PBX system having a frame relay network connection between two endpoint routers while permitting the first remote...
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7248562 |
System and method for measurement-based adaptive caching of virtual connections
An adaptive SVC caching method and system are provided to offload the high processing capacity burden of ATM switches. After an SVC is established in a usual way for a call, it is not torn down...
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7227927 |
Scalable call processing node
A scalable call processing node includes link interface modules capable of processing n calls per second and call server modules capable of processing m calls per second, n is variable relative to...
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7227837 |
Fault tolerant virtual tandem switch
A system and method for reducing and surviving failures in a voice trunking over ATM (VTOA) environment includes an ATM network having a plurality of interconnected ATM switches. The VTOA system...
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7194569 |
Method of re-formatting data
A data structure is disclosed. The data structure includes a data descriptor record. In turn, the data descriptor record includes a type field, a base address field, an offset field, wherein the,...
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7136378 |
Secure ATM-based distributed virtual tandem switching system and method
A method for providing secure communications through a communications network comprising ATM channels and TDM channels. The communications network includes at least one closed user group of network...
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7130407 |
Method for processing call establishment requests
The invention relates to a method for processing a call establishment request in a telecommunication system comprising a plurality of exchanges communicating with each other, and in which method: a...
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7099311 |
Virtual tandem switch
An Asynchronous Transfer Mode (ATM)-based distributed virtual tandem switching system is provided in which a network of ATM-based devices is combined to create a distributed virtual tandem switch....
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7095734 |
Distributed virtual tandem switch
A distributed network switching system includes a data network. The system also includes multiple access interworking function (A-IWF) devices each operating as a gateway that enables customer...
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6980544 |
Combining narrowband applications with broadband transport
The combination of narrowband applications with broadband transport is enabled by combining a first node having narrowband ability with a second node having broadband ability in which call control...
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6885671 |
System and method for connecting a call
A system and method connect a call in a broadband system using the asynchronous transfer mode protocol for switching. Calls are connected over a SONET ring that has SONET multiplexers coupled by...
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6865624 |
Method and apparatus for processing calls on a multiprocessor communication system
A call made with a communication device is processed using multiple call processors (CPs) operatively connected to a network. CPs use processing load information from other CPs to select which CP...
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6856598 |
Communications system
In a communication network where a subscriber is connected to switches in an originating carrier communications are routed to and/or from the subscriber via at least one communications carrier...
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6744770 |
System and method for treating a call for call processing
The invention comprises of a telecommunications signaling processor that processes signaling system #7 telecommunications signaling messages to select asynchronous transfer mode virtual connections...
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