Keyboard type

Depending on the data being entered, a mobile device should display the keyboard that is appropriate for the data.

There are a variety of keyboard types for mobile devices. A field dedicated to phone number input should display a keyboard easying phone number input.

The KEYBOARDHINT form field attribute provides a hint regarding the kind of data the form field contains. Valid values include DEFAULT, EMAIL, NUMBER, and PHONE:
ATTRIBUTES
EDIT f01 = customer.cust_phone, KEYBOARDHINT = PHONE;
...
Although Genero mostly respects the provided hint, the variable data type that is bound to the form field is also examined, to determine what keyboard to display:

For more details, see KEYBOARDHINT attribute.