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
Methods of prognosing a rheumatoid arthritis remission phenotype
Changing sound alerts during a messaging session
Aggregating completion messages in a sideband interface
Method and receiver for jointly decoding received communication signals using maximum likelihood detection
Pattern generation method and pattern generation program
Use of natriuretic peptide for treating heart failure
Managing wear leveling and garbage collection operations in a solid-state memory using linked lists
  Randomly Featured Patents
Apparatus and method for a caller ID modem interface
Varistors based on nanocrystalline powders produced by mechanical grinding
Fan clutch wrench
Printhead IC with multiple operating modes
Semiconductor device including multi-chip
Water ionizing electrode and electrochemical process for using
Pipeline transportation of heavy crude oil
Developer supplying cartridge, developer receiving cartridge, process cartridge, and image forming apparatus
Coating system providing low friction