[MF (Tone)/DP (Pulse)] is set to [Tone] by factory default.
For push-button type phones, if you hear a "Beep, boop, beep" sound when dialing, leave [MF (Tone)/DP (Pulse)] as [Tone].
For push-button type phones, if you do not hear a "Beep, boop, beep" sound when dialing, or if you are using a rotary-dial type phone, set [MF (Tone)/DP (Pulse)] to [Pulse].
The factory default password is "aaaaaa".