Ericsson GH198 - Manual (Page 29)

Appending Digits to a Recalled Number
If you have stored a partial number, you can recall it from
the memory and then append the remaining digits, using
the numeric keys.
Replacing the Last Digits of a Recalled
Number
A number recalled from the memory can be altered by
erasing the last digits using the C key, and then entering
new digits.
Recalling Numbers
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