] VeriSign says it will combine Unimobile technology with
] its own services to offer a new set of short message
] service (SMS), multimedia messaging service (MMS) and
] secure content delivery capabilities. The combination of
] technologies will also enhance messaging
] interoperability, as it will enable connections to more
] than 300 carriers around the world, VeriSign says.

VeriSign acquires Unimobile - 2004-03-22 - Silicon Valley/San Jose Business Journal