Comverse Selected To Provide Its ISMCS For GPRS Applications To Taiwan Cellular Corporation -TCC-.

Business Editors

WOODBURY, N.Y. & SINGAPORE--(BUSINESS WIRE)--Oct. 23, 2001

The Agreement Includes Both Mobile Terminated And Mobile Originated

Short Message Applications

Comverse, a unit of Comverse Technology, Inc. (NASDAQ: CMVT), and the world's leading supplier of software and systems enabling network-based multimedia enhanced communications services, today announced it has been selected by Taiwan Cellular Corporation (TCC), Taiwan's leading mobile operator, to provide its Intelligent Short Message Service Center (ISMSC).

TCC currently has 6.4 million subscribers.

Comverse will be presenting their SMS capabilities at the SMS Messaging Asia Pacific Summit 2001 this week in Singapore.

Comverse provides a complete portfolio of SMS solutions, featuring an ultra-high capacity SMSC, interconnection gateways for cross-network short messaging and an advanced SMS Application Management Center for unified management of third party content and applications. Moreover, Comverse's WML-based Open.SMS interface enables interactive mobile Internet services on any SMS-capable phone. The Comverse SMS portfolio of products offers fully integrated solutions based on open standards with full support for GPRS, IP connectivity, and 3G requirements.

"Comverse's ISMSC is the right solution for TCC," said Mr. N R Huang, Vice President of TCC, "The ISMSC is highly scalable, and hence, it can easily meet the explosive growth in demand for SMS services. Comverse's ISMSC also offers GPRS capability and is prepared for the next wave of mobile technologies. The rapid deployment of advanced services to our customers is critical to TCC's success in the competitive Taiwanese market." Zeev Bregman, Chief Executive Officer of Comverse said, "Our agreement with TCC underscores the expansion of Comverse's enhanced services market success in the Asia-Pacific region, including SMS. We are seeing a growing trend toward the use of mobile phones for more sophisticated applications, and TCC is a highly developed company endorsing this trend. We are pleased TCC has selected Comverse to provide our high-performance, scalable ISMSC."

About TCC

Taiwan Cellular Corporation (TCC) is the leading operator in Taiwan in terms of subscribers, revenue, and profitability. In three short years TCC has gone from being a start-up to overtake the incumbent and become the market leader in Taiwan. As of year-end 2000 (the most recently available statistics from the Directorate General of Telecommunications in Taiwan), TCC held 32% cumulative market share of subscribers. In terms of telecom service revenue TCC holds an even more impressive 36% market share. Total TCC subscribers reached 6.36 million making TCC one of the largest cellular operators in Asia. TCC is listed on the Taiwan OTC Securities Exchange and is the first private telecom company to qualify and currently the only private telecom company in Taiwan to be publicly listed, The company is positioned as the highest quality network service provider and leading brand for business users in the Taiwan market. TCC's superior network, quality, and coverage are verified by our number one ranking in the government-sponsored, independent network quality evaluation. Additional information about TCC is available at : http://www.twngsm.com.tw/

About Comverse

Comverse, a unit of Comverse Technology, Inc. (NASDAQ: CMVT) is the world's leading provider of software and systems enabling network-based multimedia enhanced communications services. More than 375 wireless and wireline telecommunications network operators, in more than 100 countries, have selected Comverse's enhanced services systems and software, which enable the provision of revenue-generating value-added services including call answering with one-touch call return, short messaging services, IP-based unified messaging (voice, fax, and email in a single mailbox), 2.5G/3G multimedia messaging (MMS), wireless instant messaging, wireless data and Internet-based services, voice-controlled dialing, messaging and browsing, prepaid wireless services, and additional personal communication services. Other Comverse Technology business units include: Comverse Infosys, a world leader in the development, manufacture and marketing of intelligent digital voice, video and data recording and content management applications for the security, surveillance, law enforcement and contact center markets; and Ulticom, a leading provider of service enabling network software for wireless, wireline, and Internet communications. Comverse Technology is an S&P 500 and NASDAQ-100 Index company. For additional information, visit the Comverse web site at http://www.comverse.com

All product and company names mentioned herein may be registered trademarks or trademarks of Comverse or the respective referenced company(s).