P508 Teletext 508 Jan 7 01:46:57         —————————————————————————————  CELLNET BOOST FOR SECURITY Security Services, which owns 40% of the Cillnjt phone system, is expected to dial up a huge profits rise to £60m whsn it reports finals on Thursday. Cellnet is thought to have enjoy d high growth in uhf number of subscribers, with 139,000 n w additions in December. The Cjllnct figures come just days after rival Vodafone revsaled record subscriber numbers. ——————————————————————————————————————— Financial headlines 500 City index 501 DOWNLOAD SHARES ON YOUR PC p532/533 Next CompNews Shares Family Finance