MDSI Provides Details on Three Telco Contracts; Deals include MDSI's first major Canadian telco and two customer upgrades.

RICHMOND, BRITISH COLUMBIA--(BUSINESS WIRE)--Feb. 26, 1999--MDSI Mobile Data (NASDAQ:MDSIF) (TSE:MMD) (ME:MMD) MDSI Mobile Data Solutions Inc. ("MDSI") (Nasdaq: MDSIF; TSE, ME: MMD) announced today details of three recent agreements for its Advantex(tm) - Telecommunications software.

The agreements are with Manitoba Telecom Services of Winnipeg, Manitoba, and existing customers Rogers Cablesystems Limited of Toronto, Ontario and Lufkin Conroe Telephone Exchange of Texas. After MDSI(tm)'s substantial success signing contracts with telecommunications companies ("telco") in the U.S. and internationally, Manitoba Telecom Services ("MTS") represents MDSI's first deal with a major Canadian telco. Combined, the total value of the agreements is approximately C$2.6 million (approximately US$1.7 million). The entire amount represents software and services and was disclosed as part of the backlog figure in fourth quarter results, as announced January 26, 1998.

MTS of Winnipeg, Manitoba will implement Advantex(tm) - Telecommunications across its extensive province-wide system, comprising urban centres like Winnipeg and many rural areas. The system will automate all 400 of MTS's field service workers across all business systems, including residential and business telephony, and high-speed data. As part of the agreement, MDSI will interface Advantex(tm) - Telecommunications to several MTS legacy systems, including Nortel's CALRS NGEN system which handles residential and business line testing. MTS is the only full-service telecommunications provider in Manitoba. Its fully-digital, province-wide network provides coverage to 1.1 million Manitobans.

Rogers Cablesystems Limited ("Rogers") of Toronto, Ontario, one of the first adopters of wireless technology for mobile workforce management, is upgrading their current Advantex - Telecommunications system to version 5.4. Further, the company is rolling out the system to manage additional business areas. Previously, Rogers used Advantex to manage cable trouble tickets only. Now, Advantex will also manage cable installations and "Rogers @Home" (Rogers' cable Internet service) trouble tickets and installations. Rogers, a wholly-owned subsidiary of Rogers Communications Inc., is Canada's largest cable network operator and provides high quality entertainment, information and communication services to approximately 2.2 million customers in Ontario and British Columbia. Lufkin Conroe Telephone Exchange ("LCTX") of Lufkin/Conroe, Texas began its relationship with MDSI just over two years ago when it became MDSI's first customer in the telecommunications market. LCTX is upgrading its current Advantex - Telecommunications system to version 5.4 to take advantage of extended product functionality, like enhanced mapping and workload distribution. Serving more than 1,400 square miles in the Lufkin and Conroe areas, LCTX is the fifth largest local telephone company in Texas and the 28th largest in the country. LCTX offers the latest in business and residential communication services to over 100,000 access lines.

According to Ken Miller, MDSI's CEO, "We are very pleased to extend our telco success into Canada. We intend to show MTS what we have already shown Rogers, Lufkin Conroe and all our customers - that we believe in long-term customer relationships. Telcos and cable companies work in an extremely dynamic market, so we work with our customers on an ongoing basis to ensure that our solutions constantly provide the customer service edge they need."

By improving management of the mobile workforce, Advantex-Telecommunications helps telecommunications and cable companies improve and innovate customer service to win more customers and keep them longer. Advantex schedules appointments so service requests are dealt with promptly and customers are guaranteed specific appointment times. The system automatically assigns tasks to the most appropriate field technician, based on skill set or other factors, so that the job gets done right the first time. Advantex automatically distributes the workload, so dispatchers can focus on emergency situations and serve larger workforces and territories. It transmits job status information to the office so dispatchers can monitor progress "at-a-glance" and reprioritize orders. Advantex lets technicians stay informed through interactive messaging with dispatchers and access to critical corporate information systems, like customer records and inventory. Advantex also reports on performance to help senior management make decisions. And it all happens wirelessly, in real-time.

About MDSI

MDSI is a global leader in the development and implementation of mobile workforce management and wireless connectivity solutions to companies in the utility, telecommunications, cable, taxi, courier, field service, and public safety industries. MDSI was founded in 1993, and has operations in the U.S., Canada, Europe, and Asia. With approximately 100 customers in over 25 countries worldwide, MDSI is the choice of industry leaders such as: AT&T Wireless Services, Belgacom SA, Boston Edison Company, Cablevision Systems Corporation, Cox Communications, DHL Worldwide Express, Illinois Power Company, North Carolina State Highway Patrol, Pacific Gas & Electric, Radio Taxis of London, San Diego Gas & Electric, and Tele Danmark.

MDSI and Advantex are trademarks of MDSI Mobile Data Solutions Inc. All rights reserved. All other trademarks are the property of their respective owners.