Unicom Guomai Communications CO.,LTD.engages in the field of trunking PAMR. It takes MOTOROLA SMARTNETII+ as its anolog system, which owns three sites cover the most area of Shanghai.The usual coverage area is based on the sites, with a radius of 25 KM (handset) or 45KM (mobile phone). In 2001, Unicom Guomai invested in Motorola’s iDEN system, This digital wireless trunking system is to meet the increasing demands of the market. There are 40 sites in Shanghai, and its coverage is almost 90% area of Shanghai. Up to now, the end user of Guomai is over 15000. The service is involved in a variety of fields such as flood prevetion、frieght、road supervising、passenger transporting、security。In the meeting of APEC held in 2001, Guomai’s anolog and digital system provided dispatch

service, which awarded the praise. The company is obtained the Motorola’s maintainance qulification. With the skilled maintainance of the technician staff, Guomai will offer every customer sincere service.