The group's principal activities are to design, develop, sell and market unified voice messaging software. It operates through its wholly owned operating subsidiaries, voice mobility inc. And voice mobility (us) inc. Its primary market is the tier i and tier ii service providers including wireless service providers, competitive local exchange providers, Internet service providers, cable operators and smaller incumbent local exchange carriers. The group's unified communications products allow subscribers to use a single electronic mailbox to store and retrieve voicemail, faxes and e-mail from many types of devices, including wire-line and wireless phones, e-mail or Web browsers. Their geographic markets include North America, Europe and Asia.