System for adding or removing supplementary services to a home location register

摘要

PCT No. PCT/SE95/00421 Sec. 371 Date Oct. 15, 1996 Sec. 102(e) Date Oct. 15, 1996 PCT Filed Apr. 18, 1995 PCT Pub. No. WO95/28812 PCT Pub. Date Oct. 26, 1995The invention relates to a GSM-type telecommunications system having a superordinate unit or Home Location Register (HLR) which includes software necessary for base functions and relevant supplementary services. The software in the superordinate unit (HLR) is structured such to provide a first software set-up (21) for requisite base functions, a second software set-up (22) for added supplementary services, and a third software set-up (23) for coordinating the first and second software set-ups, so that the third software set-up (23) can be adapted to enable a supplementary service-related portion (22a) of the second software set-up (22) to be included or removed without affecting the first software set-up.