No Sound Support

I recently purchased a new PC from one of the major computer manufacturers. I placed my order via the web but asked for them to call me for my credit card information. So, after a couple days of phone tag, I got in touch with the saleswoman handling my account. I was thinking I'd just give her my credit card number and be on my way.

Almost.

Saleswoman: "Do you realise that the modem you've chosen doesn't have sound support?"

Customer: "What exactly does a 'modem with no sound support' mean?"

Saleswoman: "It means that if you go to a web page that has a movie or sound file, you
won't be able to hear it."

Customer: "What does the modem have to do with that?"

Saleswoman: "Well, sir, the modem is what connects your computer to the Internet."

Customer: "So, you're telling me that this particular modem scans the TCP/IP packets
passing through it for those belonging to any sound application and filters them out?"

Saleswoman: "Yes."

Customer: "How does it accomplish this feat?"

Saleswoman: "I'm not technical enough to answer that. Please hold."

I stayed on hold for five minutes and hung up.