This keypad is noticably bigger than a 33A00-1 and is surface mount only. Note the lcd size is also inset and the front screw holes with dual grills for microphone/speaker. I can't seem to find any reference online or any images that correspond to the product number that's on the board - 15A01-1. Hoping somebody here can identify it.
Picture of the front ....
https://photos.app.goo.gl/gddHfyyvdauBqYL66
Picture of the board ...
https://photos.app.goo.gl/RUDZTmDGD2pio1Z2A
Back plate
https://photos.app.goo.gl/DQkWXeuLkEuCkSkQ9
Picture of the front ....
https://photos.app.goo.gl/gddHfyyvdauBqYL66
Picture of the board ...
https://photos.app.goo.gl/RUDZTmDGD2pio1Z2A
Back plate
https://photos.app.goo.gl/DQkWXeuLkEuCkSkQ9