1. A global conference on the tsunami catastrophe opened Tuesday amid calls for direct world action to prevent such natural events from becoming mass killers.
2. Apple initially participated in regular conference calls with Greenpeace on the ratings scheme, but didn't change its practices any more than required by law.
3. Renhe will hold conference calls with investors in Asia and Europe this week, a source close to the deal said.
4. Similarly, eight out of 10 companies cut business trips in favour of conference calls.