Initiating a conference call using a call waiting graphical user interface
includes receiving an indication that an incoming telephone call is
directed to a telephone number and identifying an account associated with
the telephone number to which the incoming call is directed.
Configuration data related to the account is accessed. A first online
identity and a second online identity associated with the account are
identified based on the configuration data accessed. A first electronic
communication is sent to the first online identity and a second
electronic communication is sent to the second online identity. The first
online identity can respond to the first electronic communication and the
second online identity can respond to the second electronic
communication. A conference call between the caller and the first and
second online identities is initiated conditioned on whether the
responses by the first and second online identities indicate that both
the first and second online identities wish to take the call.