A system and method for supporting a multi-participant voice conference call using PSTN and Internet networks is described. The method for supporting a multi-participant voice conference call includes receiving voice from a PSTN client. The method also includes receiving voice data from a moderator and from at least one remote client connected to the Internet. The method then proceeds to mix the voice data from the PSTN client with the voice data from the moderator into a first mixed voice data that is transmitted to the remote client that is connected to the Internet. The method also mixes the voice data from the moderator with the voice data from the remote client connected to the Internet into a second mixed voice data that is transmitted to the PSTN client.

Methods and apparatuses to provide telephonic connections to members of a social network. One embodiment includes: identifying a first member connected to a second member in a social network; determining whether profile data of the first member of the social network includes a telephonic reference of the first member; presenting a user interface element to the second member over a data communication network in response to a determination that the profile data of the first member includes the telephonic reference of the first member; and responsive to a selection of the user interface element, initiating a first telephonic connection to the first member using the telephonic reference of the first member and a second telephonic connection to the second member to provide a telephonic connection between the first member and the second member.