RCA 29993 - Manual (Page 28)

28
M
EMORY
F
ULL
When the unit's memory is full, it answers after
10 rings and announces, “Memory is full.” A 20-
second waiting period follows, allowing you to
enter your security code.
R
EMOTE
A
CCESS
You can access your answerer from any touch-
tone phone by entering your 3-digit security code
(the default security code is 1 2 3, but you can
change it.) Be aware that remote functions do not
work with rotary or push-button pulse-dialing
phones.
Refer to the wallet-size remote card near the back
of the User's Guide. You can cut out this card to
carry with you so you know the touch-tone
commands when you're picking up messages
from another location.