messenger.yahoo.com/feat_voice.php
nl.smscity.com/voip/
en.smscity.com/voip/
axiatel.com/conference-call/
www.3callback.com/webcall/
www2.dasoertliche.de/?cmd=cmd_c4all&service=pre&c4allHost=http://ecs.c4all.net/ecs/
phone.com/virtual-office/
