AT&T SYSTEM 25 User Manual page 25

Programming Memory Buttons (Continued)
Using Redial to Store a Number
When you make a telephone call, you can program the number
you dialed into a memory button without redialing it. This
procedure works only if you dialed the number from the dial
pad to make the call, and if you haven't dialed any other digits
since making the call.
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2
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During or after the call, before you hang up
or dial another number, press
Note
If you've already hung up, lift the handset
before pressing
Press
Press the memory button where you want to
store the number.
Hang up, or continue with your call.