Change iPod default keyboard with custom keyboard

Question

I want to change the iPOD default keyboard with custom keyboard that can have number only. Like telephone dialed like this:

iPOD default keyboard is like

Answer 1

I remember the need to specify a pattern when defining the input, as well as setting the type to number. So:

<input type="number" pattern="\d*"/>

Should do the trick, otherwise you can also use:

<input type="tel">

But this method isn't really solid cross-browser.