The Technophone 901 Softpack was manufactured in the Technophone Manufacturing (Hong Kong) Ltd factory which specialised in producing mobile handsets for AMPS mobile phone networks. It was released into the USA market in 1993.
In addition to the standard phone functions, it provided an address book that could store 99 telephone numbers and associated names.
Advanced functions were provided via four menus that could be accessed through the dedicated MU function key on the handset.
The general menu provided functions such as alphanumeric name searching within the address book, choosing language options and invoking the hands-free mode. The volume menu allowed control over the ringer level and audible tone produced when pressing keys. The timer menu gave access to call timers and combined air time meters. The security menu allowed control over call restrictions and locking access to the address book memory.
Some information courtesy of Nigel Linge & Andy Sutton, the authors of 30 Years of Mobile Phones in the UK (Paid Link)