Many smartphones like the MotoQ and the Dash do not have the traditional dial pad with letters (abc, def, ghi..) and many times you need to dial by letter like 1-800-flowers. Humm ! I need to guess or try to memorize the keys. This is also common when accessing a company directory """please dial the first few letter of the persons last name using the dial pad on your phone""""
I found a great solution for this problem you can download the app at the following link.
To install: copy the cab file to the device, run the cab file on the device, you may then need to reboot the device.