Siemens 300Series User Manual page 87

Enter the number you want to save. If you
make an error while entering the number,
press the Clear key to cancel your changes
and then enter the number again.
Press the Program key. The Program status
light turns off. If you have a display
telephone, STORED is displayed.
Note: You can also assign a frequently used number to a repdial key.
(See "Repertory Dialing (Repdial)" on page 3-25.)
Making Calls 3-29