1. A method performed by a computer system of serializing an asynchronous communication having a queue of audio segments over a plurality of telephone interfaces of users participating in a telephone conference the method comprising: receiving from a first user first audio for a first audio segment; recording the first audio segment as the first audio is received; adding the first audio segment to the queue; while receiving the first audio for the first audio segment, playing for a second user a previously recorded portion of the first audio of the first audio segment, receiving from a third user a request to record a second audio segment for inclusion in the asynchronous communication using the computer system, responsive to receiving the request, recording the second audio segment; placing the second audio segment at the end of the end of the queue; after placing the second audio segment at the end of the end of the queue, terminating the first audio segment; after terminating the first audio segment, playing for the second user the second audio segment; and after playing the second audio segment, receiving from the first user audio for a third audio segment as a resumption of audio of the first user; recording the third audio segment as the audio is received; adding the third audio segment to the queue.