a network - based system and method for providing anonymous voice communications using the telephone network and data communications links under the direction of a call broker and associated network elements . a user present in a text chat room session establishes a data connection to call broker and , after qualifying for access and providing a callback number , receives voice session information and participant access codes for each desired participant in a voice call . the initiator causes session information and participant codes to be passed to one or more selected chat participants in the current text chat room . when a selected participant uses the received session information , and enters the received participant code and a callback number , the call broker in cooperation with a network adjunct processor completes voice links to the initiator and the selected participant .