cvv

Hi guys, I was trying to buy something from internet using my friend's credit card. He was with me when I'm ordering it on the website. At first it has asked for CVV no. after entering the 16-digit CC no and its expiry. I've entered the 3-digit no. in the back of card near his signature as...

My friend wants to order a Dell laptop over the phone. They have mailed him a quotation. He wants to pay by credit card but those Dell guys are asking for the CVV number of my credit card along with the card number. Is it safe to give them the CVV # ?? Has anybody done so ? Is there any workaround ?