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
High power miniature RF directional coupler
Gaming machine cabinet construction and method
System for realistically reproducing multimedia content and method thereof
Indole derivative
Bone imagery segmentation method and apparatus
Paper feed unit for printer
Integrated water damage restoration system, sensors therefor, and method of using same
  Randomly Featured Patents
Process for production of a carbon composite material
Direct-current breaker for high power for connection into a direct-current carrying high-voltage line
Method and apparatus for removing volatile organic compounds from soils
Switching device with an arc extinguishing device
External power source connecting device for an electric vehicle
Semiconductor memory device and method of burn-in testing
Hollow golf club head having crown stress reducing feature
Pyrrolopyrimidine derivatives having pharmacological activity
Screw-type extrusion machine having tie rods loaded by a pre-stressed spring system
Cookware system for increased safety