Thanks again for the tip Al :-)

I was thinking along the same lines although I don't think this is exactly what I'm after.
You see the keypad code only allows for a single keypress at a time at the moment.
So the largest number you can type in is 16 (the highest key on the keypad)
I want to be able to type in a number like 124 and end it with a #
So this number (the actual number 124) can be transmitted.
If you could imagine a cellphone or cordless landline...
As you type in the numbers on the keypad you can see them on the screen and then you press dial or possibly C(clear or *) to backspace one digit.
And when you are happy with the number on screen you press dial (in my case #) then your number is dialled (in my case TX'd)

Does this make sense ?

Kind regards
Dennis