Lynn-Arthur Associates, Inc. (LAA) announces its Real-Time Rating System (RTRS) for the A.T.& T. 5ESS(R) telephone switch. The RTRS prices telephone services for coin phone calls, credit card calls, collect calls, and third party calls handled by telephone operators. It also prices person-to-person and station calls. The RTRS has already been delivered to two telephone companies, Minnesota Equal Access Network Services (Plymouth, MN) and Brazoria Telephone Company (Brazoria, TX). Minnesota Equal Access is a network services company owned by more than sixty small telephone companies in Minnesota. Brazoria Telephone Company is a small family-run company located an hour's drive from Houston, TX. The RTRS is implemented in Objective-C in the NextStep operating system using distributed objects. It is available to run on Intel and Hewlett- Packard computers. The RTRS is a high-demand mission-critical applica- tion delivered on two redundant computer systems. The A.T.& T. 5ESS(R) switch is connected to the RTRS over two X.25 digital links on which transaction loads are shared. Each data link is connected to a separate computer system. LAA delivers the RTRS as a turn-key solution of hardware, software, tariff database, training, and installation support. Delivery takes approximately six weeks from contract signing. RTRS consists of four major software components. Three of these components run on NextStep and the fourth runs in the DOS/Windows environment. 1. The "Real-Time Rating" component receives all the rating transactions from the 5ESS switch, processes them, and answer the transactions. All knowledge of the 5ESS switch is within. 2. The "TeleRate(tm) Rating" component performs all pricing of telephone services. All knowledge of telephone services, their costs, and the database of tariffs is within. 3. The "RTRS Control" component is an application which communicates with the real-time process to stop, start, monitor, and modify the mission-critical RTRS application. 4. The "RTRS Data Control" is a DOS/Windows suite of applications for the tariff analysts who control the data on which pricing is based. "TeleRate(tm) Rating" and "RTRS Data Control" components are used in our "Operator Reference Data Base" product and act as servers when more than one application which use them is running. For more information, contact Mr. Carl Wright at +1 313 995-5590 or at "wright@laa.com". Mailing address: Lynn-Arthur Associates, Inc. 2350 Green Road, Suite 160 Ann Arbor, MI 48103 Fax phone: +1 313 995-5989 Immediate availability 5ESS(R) is a trademark of A.T.& T.