The usage of the term “Visual Voicemail” to describe iPhone’s Voicemail UI is interesting.

Visual Voicemail, which is owned by Citrix and originally developed by Net6, has been around for years and may (or may not) be what’s powering Apple and Cingular’s solution. It is indeed an answer for common problem of having to wait through all the voicemail you don’t want just to hear the voicemail you need. Apple does put a lot of emphasis on this, both in Steve’s keynote and on their website.

This means that if legitimate usage of the term or licensed software isn’t in the cards, Apple could soon find itself into a legal battle.