TeleYemen Chooses LHS' ORYX Platform for Integrated Enhanced Services................

TeleYemen Chooses LHS' ORYX Platform for Integrated Enhanced Services
Yemen's International Operator to Deliver Advanced Calling Services
ATLANTA/BOSTON/FRANKFURT--(BUSINESS WIRE)--Nov. 23, 1999-- LHS Group Inc. (NASDAQ: LHSG; Neuer Markt: LHI) today announced that TeleYemen has selected LHS Priority Call's ORYX® platform to deliver an integrated suite of enhanced services to its subscribers. TeleYemen is a joint venture of Cable and Wireless plc (51%) and Yemen's Public Telecommunications Corporation (49%) formed to respond to the increasing demand for international telecommunications services throughout Yemen.

TeleYemen will deploy a broad range of calling and messaging services on both wireline and wireless networks. Prepaid calling cards, handset-based prepaid calling, and enhanced messaging services will be offered to TeleYemen wireless network subscribers. LHS will also deliver postpaid calling services and single number services to provide seamless communications for both TeleYemen's wireline and wireless subscribers.

``We are continuing to build our relationship with Cable and Wireless as Group Standard Supplier by providing the latest equipment and applications for the TeleYemen organization,'' stated Neil Segall, LHS Priority Call business development director, Europe, Middle East and Africa. ``This is an excellent opportunity for TeleYemen to offer the entire suite of ORYX enhanced services to both their wireline and wireless subscribers through a single platform.''

About LHS Priority Call Inc.

LHS Priority Call Inc., a subsidiary of LHS Group Inc., is a leading provider of open, distributed telecommunications solutions for next generation public networks. Through LHS Priority Call's ORYX platform, service providers gain the ability to market a wide range of enhanced services including prepaid calling, enhanced messaging, and unified communications. Organizations throughout Africa, Asia, Europe, Australia, and North and South America have chosen LHS Priority Call to deliver applications and services that meet the growing demand for sophisticated communications in new and evolving networks. For more information, visit LHS Priority Call's web site at www.prioritycall.com.

About LHS

LHS Group is a leading global provider of operating support system software and services to the telecommunications industry. LHS products range from pre- and post paid billing and customer care to enhanced services and acquisition software. They are installed at more than 300 customer sites worldwide. LHS has 18 global and regional partners (system integrators, international operators and equipment manufacturers) representing one of the largest implementation and support networks in the global customer care and billing market. In addition to its Atlanta headquarters, LHS has major offices in Frankfurt, Germany; Kuala Lumpur, Malaysia; Sao Paulo, Brazil; Boston, USA; and Zurich, Switzerland. LHS is listed with NASDAQ (LHSG) and on the Frankfurt Neuer Markt Exchange (LHI). For more information, visit LHS' web site at www.lhsgroup.com.

Yemen's International Operator to Deliver Advanced Calling Services
ATLANTA/BOSTON/FRANKFURT--(BUSINESS WIRE)--Nov. 23, 1999-- LHS Group Inc. (NASDAQ: LHSG; Neuer Markt: LHI) today announced that TeleYemen has selected LHS Priority Call's ORYX® platform to deliver an integrated suite of enhanced services to its subscribers. TeleYemen is a joint venture of Cable and Wireless plc (51%) and Yemen's Public Telecommunications Corporation (49%) formed to respond to the increasing demand for international telecommunications services throughout Yemen.

TeleYemen will deploy a broad range of calling and messaging services on both wireline and wireless networks. Prepaid calling cards, handset-based prepaid calling, and enhanced messaging services will be offered to TeleYemen wireless network subscribers. LHS will also deliver postpaid calling services and single number services to provide seamless communications for both TeleYemen's wireline and wireless subscribers.

``We are continuing to build our relationship with Cable and Wireless as Group Standard Supplier by providing the latest equipment and applications for the TeleYemen organization,'' stated Neil Segall, LHS Priority Call business development director, Europe, Middle East and Africa. ``This is an excellent opportunity for TeleYemen to offer the entire suite of ORYX enhanced services to both their wireline and wireless subscribers through a single platform.''

About LHS Priority Call Inc.

LHS Priority Call Inc., a subsidiary of LHS Group Inc., is a leading provider of open, distributed telecommunications solutions for next generation public networks. Through LHS Priority Call's ORYX platform, service providers gain the ability to market a wide range of enhanced services including prepaid calling, enhanced messaging, and unified communications. Organizations throughout Africa, Asia, Europe, Australia, and North and South America have chosen LHS Priority Call to deliver applications and services that meet the growing demand for sophisticated communications in new and evolving networks. For more information, visit LHS Priority Call's web site at www.prioritycall.com.

About LHS

LHS Group is a leading global provider of operating support system software and services to the telecommunications industry. LHS products range from pre- and post paid billing and customer care to enhanced services and acquisition software. They are installed at more than 300 customer sites worldwide. LHS has 18 global and regional partners (system integrators, international operators and equipment manufacturers) representing one of the largest implementation and support networks in the global customer care and billing market. In addition to its Atlanta headquarters, LHS has major offices in Frankfurt, Germany; Kuala Lumpur, Malaysia; Sao Paulo, Brazil; Boston, USA; and Zurich, Switzerland. LHS is listed with NASDAQ (LHSG) and on the Frankfurt Neuer Markt Exchange (LHI). For more information, visit LHS' web site at www.lhsgroup.com.