Electronics and Telecommunications Research Institute

Other

Kt Corporation

Korea Telecommunication Authority

Dae Ung Kim

Dong Won Kim

Won Geun Ryu

Young Hoon Kim

Byung Sun Lee

Hyun Jeong Lee

Dong Man Jang

Chang Woo Yoon

Sun Hwan Lim

Yearn Gui Yi

A system and method for performing a traffic process in an integrated network of a VoIP (Voice over Internet Protocol) network and a PSTN (Public Switched Telephone Network) are provided. The system includes: a softswitch which has a plurality of ASPs (Application Server Processes), transmits a data signal to other nodes through an ASP that is selected from among the ASPs, and transmits a heartbeat request message when a CPU (Central Processing Unit) utilization ratio and an SCTP (System Control Transmission Protocol) level congestion of the ASPs exceed respective reference points according to AS (Application Server)/ASP information; and a signaling gateway which updates the reference points of the CPU utilization ratio and the SCTP level congestion in response to the heartbeat request message and transmits a heartbeat acknowledgement message to the softswitch, and checks the CPU utilization ratio and the SCTP level congestion for a plurality of active ASPs within a predetermined CIC (Circuit Identification Code) or SSN (Sub-System Number) range according to the AS/ASP information, to determine the selected ASP when the signaling gateway receives data signal from outside and traffic is distributed.

System and method for performing traffic process in integrated network of voice-over internet protocol network and public switched telephone network

Provided is a method of providing a Credit Card Calling (CCC) service in a Customized Applications for Mobile networks Enhanced Logic (CAMEL)-based Universal Mobile Telecommunications System (UMTS). The method defines a method of controlling the CCC service that has not yet been defined in the existing UMTS CAMEL structure. Accordingly, it is possible to provide CCC service users with more differentiated, various features of the CCC service.

Method of providing credit card calling service based on camel in UMTS

A method of authenticating and charging a client using a web infoshop service system comprising the steps of: transmitting protocol address information from the service system to the client when the client accesses the service system and selects a protocol access; when a user request to the service system is for a charged content provider, adding an authentication value to the user request, transmitting the user request including the authentication value from the service system to the charged content provider, and transmitting information corresponding to the user request from the content provider to the client; and when the client cancels the protocol access and notifies cancellation information to the service system, transmitting charging information using the service system.

Method of authenticating and charging a client using a web infoshop service system

An arbitration switching system and a method of arbitration switching in a high-speed packet switching system uses a subscriber input/output device, an arbitration switching system and a parallel common bus part for the purpose of point-to-point communication point-to-multipoint communication and transferring packets generated in each node. A system bus structure is based on a parallel common bus type. Furthermore, to accommodate high-speed arbitration switching, operations such as polling, arbitration and switching are processed in parallel. Therefore, bus use efficiency is high, and a bus-extension can be easily achieved. A star LAN may be realized because broadcasting and multicasting are supported. An internal high-speed network for interlock in large-scaled communication systems that need high-speed switching can also be provided.

Arbitration switching system and a method of arbitration switching in a

A subscriber input/output device of a high-speed packet switching system with a parallel common bus type is disclosed. The subscriber input/output device uses a coaxial cable to establish a star network of a radius of hundreds of meters, and the star network is arbitrated by a polling method to be used as a near communication network or an internal link network of a large scale communication system. The high-speed performance of 320 Mbps-class with a relatively simple medium access protocol for transmitting data through a common parallel bus is obtained, and broadcasting and multicasting are supported.

Growing community of inventors

Daejeon, South Korea

Dae Ung Kim