1. A method for accessing messages in an interactive voice response system, comprising: accessing a mailbox responsive to an identification command, said mailbox storing one or more undelivered messages, said one or more undelivered messages having stored voice subject messages associated therewith, said voice subject messages being derived from at least predetermined portions of said one or more undelivered messages; receiving a voice subject message, said voice subject message potentially identifying a plurality of undelivered messages; comparing said voice subject message with said stored voice subject messages corresponding to said undelivered messages; and delivering a corresponding undelivered message responsive to said comparing.