18. Reference Information; Sending Dtmf Tones; Changing The Nokia Xpress-On™ Covers - Nokia 3310 User Manual

18. Reference information

Sending DTMF tones

The phone can send DTMF tones to communicate with answering machines, computerised telephony
services etc.
Make a call in the normal way. Press
string or recall it from the Phone book, and press
Changing the Nokia Xpress-on™ covers
• Before changing the Nokia Xpress-on™ covers, always switch off the phone and disconnect it from
the charger or any other device.
• Always store the phone with the covers attached. Read carefully Care and maintenance on page
101.
1. Remove the back cover: Press the locking catch (1), slide the cover (2),
and lift it off the phone (3).
and (Options), and select
(OK).
©2001 Nokia Mobile Phones. All rights reserved.
Send DTMF. Key in the DTMF
95