being called in the record of the current user in fig2 field 40 is an example of such a command in the list field 40 might contain the word u201c delete u201d the next field might have u201c play u201d the next u201c reply u201d etc these words would form the u201c vocabulary u201d of the speech recognition unit for the duration of the call from the specific user to the specific dtmf controlled system if the user selected a different system or if a new user calls in then the vocabulary for the speech recognition would be re loaded based on the command list contained in the record the dtmf tones to be transmitted with each command are also listed for each dtmf controlled system in each user 39 s record for example if speech recognition unit 26 receives the prompt u201c delete u201d from user 12 unit 26 will recognize the spoken word u201c delete u201d and forward it to application 16 application 16 will perform a look up in record 22 locating u201c deleted u201d in field 40 in this particular example and retrieve the dtmf tones from field 42 e g u201c 1 u201d that are associated with deleting a message in accordance with the.