Dial pulse / rotary dial is supported by the equipment but it’s usually configured to be disabled. There used to be a lot of false 911 calls with people dialing ‘9’ with the touchpad and then bouncing the hook switch twice to rotary dial ‘1’ ‘1’.

I grew up with 4-digit dialing. Anywhere else in 617, it was a toll call and you had to dial 1+ 7 digits.