The group's principal activity is to provide real-time subscriber management services to the wireless industry. The group utilizes its proprietary software applications and a carrier-class hosted environment to provide services to approximately 70 wireless carriers and resellers. The operations are divided into three segments. The prepaid wireless services segment serves national and regional carriers on a service bureau basis. The roaming services segment provides for roaming in the carriers' service areas for subscribers who are not covered under traditional roaming agreements. The prepaid systems business delivers prepaid wireless calling solutions on a turnkey basis primarily to international customers like cable and wireless, ss8 networks and nortel networks. Other customers of the group include verizon wireless, cingular wireless, at&t wireless etc. In Mar 2004, the group discontinued its roaming services segment.