10. A method as defined in claim 6, wherein: the step of creating the call record comprises storing a plurality of names selected from the name vocabulary, the selected names having the highest measures of probability as calculated during the step of determining the telephone number desired by the caller; and the step of creating the training record further comprises calculating further measures of probability that the stored representation of the speech signal in the call record corresponds to each of the plurality of names stored in the call record.
10. A method as defined in claim 6, wherein: the step of creating the call record comprises storing a plurality of names selected from the name vocabulary, the selected names having the highest measures of probability as calculated during the step of determining the telephone number desired by the caller; and the step of creating the training record further comprises calculating further measures of probability that the stored representation of the speech signal in the call record corresponds to each of the plurality of names stored in the call record. 11. A method as defined in claim 10, wherein: the step of creating the call record further comprises storing a name associated with the released telephone number in the call record; and the step of creating the training record further comprises calculating a measure of probability that the stored representation of the speech signal in the call record corresponds to the name associated with the released telephone number stored in the call record.