Nokia 252 - Manual (Page 53)

49
Send DTMF and press . The phone sends the DTMF (Touch
Tone) string. See “Sending Touch Tones” on page 51 .
Note: When you’re in the In-Call Menu, pressing any key (0-9,
∗
,
#,   or ) exits the In-Call Menu. The phone displays the
digit pressed instead.
While the phone is alerting you of an incoming call (and there are
no other calls active or held), the In-Call menu is not available
until you answer the call. Similarly, when you press

 to
initiate a call, until the call is connected, there is no In-Call Menu.
Reminder Message
You can store a reminder message to appear the next time you
switch your phone on (it will appear once only). To do this:
1) Enter your message (see “Entering Letters” on page 21 ).
2) Give 
a quick press, then switch the phone off.
When you switch your phone on again, the message displays.