Mac users interested in Clearsea os x 10.5.8 generally download:
ClearSea is a comprehensive solution for professional desktop and mobile video conferencing. ClearSea provides a turn-key solution for enterprises and organizations in the education and healthcare markets. ClearSea is based on a Client/Server architecture.
LifeSize ClearSea is a personal video conferencing application. With this app, you can connect with any standards-based H.323 or SIP equipment, including Polycom or Cisco. Also, the application allows you to share presentations with your colleagues remotely.