Can't receive calls from my Sprint customer friend

Hi - I just got a new Verizon cell phone, and half the reason I have it is to talk to a particular friend of mine, who happens to have a Sprint phone on the East coast (I'm in California).

So far I've been able to call and receive calls from all my friends' cell and land lines, except this one friend, who's the one I talk to more than all others combined.

He CAN'T call me. When he tries to call me he gets a message saying "incorrect code". He's reported it to Sprint, but so far no answer.

He CAN text me, and that seems normal.

He CAN'T send me picture mail -- though his phone says "Sent", I never receive it.

I CAN call ~him~, but he says that when I do, his phone makes him press a button to receive the call -- and that that's never happened to him -- all he usually has to do is open the phone to answer it. I can send him pictures, but he says there too, that he has to go through an additional step to open a folder or something that he's never had to do when other people sent him pictures.

Anyone have a similar problem or know what to do? :loony:

We have both now called our respective companies and, predictably, both companies want to blame each other. It seems likely to be Sprint's fault, but, on the other hand, since this is a new phone (3 days old now) and phone number (not ported), there's a chance it's Verizon's fault.

H E L P !!!