Canon ImageClass MF 4270 Operation Manual page 37

4
Press [ ] or [
5
Press [ ] or [
<TOUCH TONE>: Tone dialing
<ROTARY PULSE>: Pulse dialing
If you do not know the type of telephone line you use, contact your local telephone company.
6
Press [Stop/Reset] to return to the standby mode.
1-16
] to select <TEL LINE TYPE>, then press [OK].
] to select the telephone line type, then press [OK].