Marketing with a phone Number

I grew up knowing the theme song to Empire Carpets. I could recite that companies phone number just like I could sing the Big Mac jingle. Problem is, that you can't just use a a few letters and a name anymore in advertising a phone number. Why? because of technology. I have a Blackberry. (next year it will be an iphone) The keyboard on Blackberry's don't correspond to the same letters as a traditional phone. So once again, I'm driving and I see the billboard for the window company and their offer of buy one and get one. And sure enough, I get stuck at the light. Again. And I thought, maybe I'll just give the company a call to tell them about their grammar issue. I reach for my phone, and I can only make half the call.