A Premium account adds the ability to use VoIP for the audio portion of the meetings, as well as recording capability to the features of a Basic account.
With VoIP, the host and guests have the option to use their computers for the audio portion of the meeting instead of the telephone, provided they have functioning input and output devices connected to their computers.
Meeting recording allows the host to record meetings as needed and can then send links to view the recordings via email or instant messenger, or put the links on their website to allow their guests to view them.
Hosts can also download their recordings should they need a copy.

For more details on plan features, please see our features page at: http://www.gatherplace.com/gp/features.jsp