What is the method to delete the Phone Book in this modem? What is the method to key in the Phone number in this modem?

To see the telephone numbers use Hyperterminal and type AT&V<ENTER>
To erase a telephone number in memory zero type AT&Z0=<ENTER>
To store a telephone number in memory zero type AT&Z0=xxxxxxxxxx where the xs are the telephone number.
To dial the telephone number in memory zero type ATDS=0
Memory locations available are from 0 to 3 (four locations).