Topic
Circuit identification code
About: Circuit identification code is a research topic. Over the lifetime, 20 publications have been published within this topic receiving 249 citations.
Papers
Patent•
17 May 1996TL;DR: In this article, the authors present a call billing application that monitors linksets of the CCS/SS7 network extending between Local Exchange Carrier (LEC) Signaling Transfer Points (STP) and Competitive Access Provider (CAP) switches such as End Offices (EO) and Tandem Offices.
Abstract: A computer platform with a Call Billing application thereon monitors linksets of the CCS/SS7 network extending between Local Exchange Carrier (LEC) Signaling Transfer Points (STP) and Competitive Access Provider (CAP) switches such as End Offices (EO) and Tandem Offices, where the CAP switches have access to the LEC switching offices in the LEC area for providing service therein. The platform receives SS7 Signal Units (SU) copied from the linksets and filters the SUs to pass ISUP MSUs of message types Initial Address Message (IAM), Exit Message (EXM), Address Complete Message (ACM), Answer Message (ANM), Reset Circuit Message (RSC) and Release Message (REL). The application correlates a received IAM against subsequently received and filtered ISUP messages in accordance with correlation search keys Originating Point Code (OPC), Destination Point Code (DPC) and Circuit Identification Code (CIC) so as to correlate the filtered ISUP MSUs that originate, set up and terminate a call. The elapsed time of the call is determined based on the difference between a call start time and a call end time where the start time is predicated on a call originating or setup MSU and the end time is predicated on a call terminating MSU. The call type can be for either "access" or "conversation" elapsed time depending on call direction and destination. Different ISUP MSU criteria are utilized for the two call types. For call type access, ACM may be utilized on which to base the start time, whereas for call time conversation, ANM may be utilized as the basis for the start time.
139 citations
Patent•
25 Nov 1991
TL;DR: In this article, an integrated circuit including a serial interface (12) having a nonvolatile memory (30) coupled to a and configuration of circuit boards and entire systems is described.
Abstract: An integrated circuit including a serial interface (12) having a nonvolatile memory (30) coupled to a and configuration of circuit boards and entire systems. A configurable circuits (10) containing switches, resistors, capacitors or digital logic devices has an unique identification code and is electrically configured by connection to a nonvolatile memory (30). An interrogation shift register (38) and a configuration data shift register (36) are serially connected to receive a serial bit stream (50) containing an interrogation code section and a configuration data section. The interrogation code, which is identical to the identification code of a selected one of the configurable circuits, is compared with the circuit identification code to provide a match pulse (42) that enables a program signal to initiate transfer of data from the data shift register (36) to the nonvolatile memory (30).
59 citations
Patent•
4 Aug 2004TL;DR: In this paper, 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.
Abstract: 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.
11 citations
Patent•
21 Nov 2001
TL;DR: In this paper, a proxy switch is deployed between a base station subsystem and a mobile station center, which receives signaling messages and either retransmits them, blocks them, converts them, or siphons them to an alternative network.
Abstract: A proxy switch, communication method for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. It receives signaling messages and either retransmits them, blocks them, converts them, or siphons them to an alternative network. A BS is in trunk line communication with the switch and the trunk line communication is organized as bearer circuits, each bearer circuit identifiable with a circuit identification code (CIC). The switch receives signaling messages from the the BS and determines if a call corresponding to the signaling message is to be handled by the alternative communication network. If so, the switch assigns a CIC for a bearer circuit for the call and communicates the CIC to the BS. Thereafter, the switch receives information on the CIC-identified bearer circuit and forwards the received information to the alternative network.
10 citations
Patent•
27 Aug 1999
TL;DR: In this paper, the call control signaling information associated with a first telecommunications signaling protocol such as an N-ISDN system 7 signaling protocol, is bound to the bearer control signal associated with Q.aal2 signaling protocol.
Abstract: In an asynchronous transfer mode (ATM) based transmission network, call control signaling information associated with a first telecommunications signaling protocol, such as an N-ISDN system 7 signaling protocol, is bound to bearer control signaling information associated with a Q.aal2 signaling protocol, where both call control signaling information and bearer control signaling information are required to set-up and maintain an ATM network connection. Binding the call control signaling information and the bearer control signaling information is accomplished as a function of the circuit identification code associated with the call control signaling information, where the circuit identification code is transferred from the N-ISDN system 7 signaling protocol to the Q.aal2 signaling protocol. The call control signaling information and the bearer control signaling information are then independently transported from a source node in the transmission network to a destination node, over an ATM/ATM adaptation layer type 5 transmission link, in accordance with the ISUP system 7 signaling protocol and the Q.aal2 signaling protocol respectively. At the destination node, the call control signaling information and the bearer control signaling information are aligned as a function of the circuit identification code, and an ATM network connection is established.
10 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2016 | 1 |
| 2013 | 2 |
| 2009 | 1 |
| 2007 | 1 |
| 2006 | 2 |
| 2005 | 4 |