Card cellular phone prepaid verizon

Business Editors

SEATTLE--(BUSINESS WIRE)--June 18, 2001

Cellular Technical Services Company, Inc, ("CTS")(Nasdaq:CTSC) today announced that it has expanded its agreement with Verizon Select Services, Inc. ("Verizon") to distribute Verizon long-distance, prepaid phone cards in the newest state where Verizon offers long-distance service.

The agreement gives CTS' ISIS Tele-communications, Inc. ("ISIS") subsidiary exclusive rights to distribute the Verizon Massachusetts prepaid phone card throughout Massachusetts.

The Verizon prepaid calling cards are intended for domestic and international calling providing both high quality service and competitive rates to end users. ISIS will distribute the products through its Boston area office and dealer network, and is pleased to add the Verizon Massachusetts product line to its current Verizon California offerings. This product line addition adds to ISIS' growing range of quality, prepaid products and is in line with CTS' previously stated strategy to offer reliable products to the growing, prepaid long-distance phone card marketplace.

CTS is a leading provider of real-time information management systems for the wireless communications industry, and trades under the Nasdaq NM Symbol: CTSC. Verizon Select Services is a subsidiary of Verizon Communications, one of the world's leading providers of communications services.

Special Note Regarding Forward-Looking Statements: This press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties that could cause actual results for CTS or its affiliates to differ materially from those expressed or implied in the applicable statements. These risks and uncertainties include but are not limited to: vulnerability to rapid industry change and technological obsolescence; dependence on a limited number of customers, existing products and services; uncertainty of continued demand for and market penetration of its existing products and services under existing and future contracts; uncertainty in its ability to timely develop, introduce and gain acceptance of new products and services; the possible impact of competitive products and pricing; the risk that its current and future products may contain errors or be affected by technical problems that would be difficult and costly to detect and correct; reliance on a limited number of outside vendors for key products and services; potential difficulties in managing changing business conditions; dependence on key personnel; the availability of financing; and other risks described in CTS' filings with the Securities and Exchange Commission.