Trillium Digital Systems Inc. announces release of Frame Relay SVC/PVC - Q.933/LMI - Signalling Source Code software product.LOS ANGELES--(BUSINESS WIRE)--July 22, 1996--Trillium Digital Systems Inc. last Friday announced that it has released and shipped the first commercially available source code software product supporting Frame Relay SVC/PVC Signalling. Trillium's Q.933/LMI is fully compliant with the International Telecommunications Union See ITU. (body, standard) International Telecommunications Union - (ITU) ITU-T, the telecommunication standardisation sector of ITU, is responsible for making technical recommendations about telephone and data (including fax) communications systems for PTTs and suppliers. (ITU) Q.933 and the ANSI (American National Standards Institute, New York, www.ansi.org) A membership organization founded in 1918 that coordinates the development of U.S. voluntary national standards in both the private and public sectors. It is the U.S. member body to ISO and IEC. T.617 specifications. These specifications define the procedures for user-network signalling to support dynamic establishment of switched frame relay connections (SVCs). They also specify procedures for PVC PVC: see polyvinyl chloride. PVC in full polyvinyl chloride Synthetic resin, an organic polymer made by treating vinyl chloride monomers with a peroxide. management. The Q.933/LMI software supports both the SVC (1) (Switched Virtual Circuit) A network connection that is established at the time the transmission is required and disconnected when the session is completed. signalling case A and case B procedures. Q.933 case A procedures are used to establish frame relay SVCs with a remote frame handler over leased lines or previously established ISDN ISDN in full Integrated Services Digital Network Digital telecommunications network that operates over standard copper telephone wires or other media. bearer channels, using in-channel signalling. Q.933 case B procedures are used to establish frame relay SVCs with the local ISDN frame handler on B, H or D Channels using channel non-associated group signalling carried on the D channel. In addition to SVC signalling, the Q.933/LMI software also supports PVC status signalling for PVC management (LMI) as defined in Q.933 Annex A & B and in ANSI T1.617 Annex B & D. The product can be dynamically configured, at run time, on a per port basis, to support either SVC signalling or PVC signalling or both. Thus, the integrated Q.933/LMI software provides support for co-existence of SVC's and PVC's on the same interface. Jeff Lawrence, Trillium's President and CEO (1) (Chief Executive Officer) The highest individual in command of an organization. Typically the president of the company, the CEO reports to the Chairman of the Board. , said, "The Q.933/LMI software rounds out our Frame Relay Product line very nicely. The Q.933 software design is based on our very popular Q.93B ATM and Q.930/Q.931 ISDN signalling software. "We believe the features of this product provide a great deal of flexibility to support the different signalling specifications and will allow manufacturers of Frame Relay equipment to support simultaneous SVC/PVC operation on the same interface seamlessly." The Frame Relay SVC/PVC Signalling software is available immediately. The Q.933/LMI software will also work with Trillium's Q.922 and FR/ATM Interworking (standard) interworking - Systems or components, possibly from different origins, working together to perform some task. Interworking depends crucially on standards to define the interfaces between the components. products. The Q.922 software provides frame relay core functions such as framing, DLCI (Data Link Connection Identifier) The number of a private or switched virtual circuit in a frame relay network. Located in the frame header, the DLCI field identifies which logical circuit the data travels over, and each DLCI has a committed information rate multiplexing, traffic management and multicast services. It can also provide reliable data transfer services using LAPF procedures. The FR/ATM Interworking software supports both network interworking and service interworking for PVCs. The above products provide a complete Frame Relay Stack solution for operation at the user side in a Frame Relay Access Device (communications) Frame Relay Access Device - (FRAD) Hardware and software that turns packets from TCP, SNA, IPX, etc into frames that can be sent over a Frame Relay wide area network. or at the network side in a Frame Relay Switch. Trillium licenses its software for a one-time fee. The fee includes source software, documentation, a training course and a period of technical support. Trillium Digital Systems, a privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. founded in 1988, designs, markets and licenses standards based communications software. Trillium offers software for the Signalling System 7 (SS7), Asynchronous Transfer Mode See ATM. (communications) Asynchronous Transfer Mode - (ATM, or "fast packet") A method for the dynamic allocation of bandwidth using a fixed-size packet (called a cell). See also ATM Forum, Wideband ATM. ATM acronyms. Indiana acronyms. (ATM), Integrated Services Digital Networks (ISDN), Frame Relay and X.25 communications protocols. Trillium is a leading supplier of communications software technology to computer and communications equipment manufacturers and has licensed its source software throughout the world for use in a wide range of switching, network access, service platform, operating system and test equipment products Trillium communications software is written in the C programming language and is designed so that it may be licensed in source form by manufacturers for integration into a wide range of computer and communications products. Manufacturers license Trillium's software technology to significantly speed the time to market, reduce the risk and lower the cost of developing and providing standards based communications protocols within their products. Trademarks referenced herein are trademarks (registered or otherwise) of the respective trademark owners. CONTACT: Trillium Digital Systems, Inc. Tel: +1 (310) 479-0500 Fax: +1 (310) 575-0172 Web: http://www.trillium.com or Public Relations: Jeff Lawrence Email: j_lawrence@trillium.com or Sales/Marketing: Lou D'Alo Email: lou@trillium.com |
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