Virtual telephone numbers from more than 60 countries. (globalnumbers.de)
Call free (or really cheap) to many international destinations. (callcheap.de)
WOWZA! VoiceBridge has just improved! You can now invite people to join your conference even when they are currently not connected to VoiceBridge.
When in a conference, just press 3 and follow the instructions. Let us know if you like this feature!