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
Key management using quasi out of band authentication architecture
Portable stand
Online data conversion technique using a sliding window
Systems and methods of using dynamic data for wear leveling in solid-state devices
Process for producing a plasma protein-containing medicament with reduced concentration of citrate and metals
System and method of verification of analog circuits
Electrical conduit containing a fire-resisting thermoplastic composition
  Randomly Featured Patents
SCSI connector
Spare tire extraction device
Method and apparatus for computing motor speeds for initiating and ending jolt control during gearshift in a drive system using fluid couplings or torque converters
Motor-vehicle door latch
Internal marker device for identification of biological substances
Data management
Upflow surface water runoff filtration system
Method of extending channels for IEEE-1394 serial bus
Digital semiconductor circuit for an electronic organ
Radio frequency zero crossing signal generator for optical disc drive