MyIC for Mac
It is specifically designed to provide multiparty business communications
MyIC provides Unified Communication & Collaboration for the iPad supported by Alcatel-Lucent's 'My Teamwork' ACS server.
The intuitive interface removes the complexity from multimedia communication and collaboration, with a featured rich client: Presence, IM chat, meet-me, ad-hoc, and scheduled Conferencing with click-to-conference and drag'n'drop.