Abstract: A method and devices for calculating a billing total for a teleconference between a plurality of participants is disclosed. Advantageously, the teleconference may be a telephone conference call. Each of the participants is associated with an identifier of that participant's origin, such as a portion of the participant's telephone caller identification information. At least one particular identifier is used to signify that charges for a caller's participation should be attributed at a lower rate to the total. For participants associated with an identifier other than a reduced rate identifier charges are attributed to the total at a rate greater than this lower rate. A conference call service provider may use the method and system to charge reduced rates for certain participants, allowing the service provider to compete with locally located teleconference systems, for which participants would not incur long distance toll charges.