Resources Contact Us Home
Terminal-to-terminal communication connection control method using IP transfer network

Image Number 105 for United States Patent #8121113.

Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit/receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common line signal system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into this address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance.

  Recently Added Patents
Light emitting diode having multi-cell structure and method of manufacturing the same
Molecular hydrogen stores and hydrogen transfer reagents for hydrogenation reactions
Peer-to-peer method of deploying and managing executable code and associated plug-ins
Image forming apparatus, control method of image forming apparatus, and storage medium
Vehicle speed verification system and method
  Randomly Featured Patents
Apparatus and methods for creating and/or editing color-image processing files
Staple remover
Footwear sole
Cache memory device including word line driver circuit and method
Dyeing composition for dyeing keratinous fibers comprising at least one particular dicationic diazo dye
Exhaust gas purifier
Power supply having a dual air flow control for reducing heat buildup
Method and apparatus for freezing a communication link during a disruptive event
Brick press frame having prestressed columns
Paper slip storage and dispensing apparatus