In 8×8.com system by using their BPG 510 VoIP Phone adapters, it is possible to make conference call up to 20 numbers of people and you can almost conduct a meeting absolutely free. It is always better to use 8×8.com services for conference call as it will save your cal charges and you can continue to talk for longer duration. In many cases the official meeting can be conducted with the group of people at any point of time. Particularly with the sales force one can do sales meeting at any point of time. All these calls can be made with a password so that others can not intervene.