Factory Reset of Moshi BTHF205T

How do you preform a Factory Reset of a Moshi BTHF205T bluetooth speakerphone for celluar telephones in automobiles? Need to delete the telephone numbers stored in the BTHF205T ("Setup Menu", "Call Favorites") so that the BTHF205T returns to the orignal configuration of connecting to the cellular telephone's Speed Dial 1 through 7.

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