Has Apple grabbed Visual Voicemail application from Citrix?

It seems that controversy is not so easily evading Apple iPhone. First, Cisco slapped Apple for the trademark name ‘iPhone’. The iPhone fiasco is still going on. Meanwhile, a Register report brings a fresh controversy for Apple.
In an exclusive story, the Register claims that Apple has grabbed visual voicemail application name from an old company called Citrix.
The Citrix website explains that Visual Voicemail allows users to take a quick glance at their list of voice messages to check for important ones-without having to listen to all their messages.
As of now, this service is available for Cisco IP phones. Interestingly, Apple’s iPhone has the same application. Is Apple heading towards yet another legal battle?