Powwownow: Use Powownow to make free conference calls without even registering. Just click and call.
Basement Ventures LLC: BV FreeConferencing allows free calling for as many as 250 attendees for up to six hours. BV also allows you to record your conference calls for free in MP3 format to save or post online.
FreeConference: With free basic service, free recording and no credit card required, FreeConference is currently being used by 60 of the Fortune 100 companies.
FreeConferenceCall: FreeConferenceCall offers accounts that can accommodate up to 96 users, as well as 24/7 customer service.
Totally Free Conference Calls: Totally Free Conference Calls offers the same types of free features as its competition, with up to 99 participants per call.
Foonz: This service allows you to make unscheduled conference calls from any phone and location for free – ideal for PR professionals or party organizers. Foonz also allows users to blast voice-mail messages to multiple recipients.
No Cost Conference: Another free service powered by ad revenue. For users who want the service but not the ads, plans start at $4.99 per month.
EasyConference: Free with no ads? That’s what they say.