Bluetooth, 3GS, and Macbook

I'm trying to pair my Motorola H500 Red with my iPhone and my Macbook. Had some difficulty with the iPhone but finally got it working with the following solution:

Try this link. It solved my issue: www.scribd.com/doc/280088/motorola-h500-bluetooth-earpiece-manual. Basically what you need to do is power the earpiece off. Make sure that your IPhone is not currently attempting to discover bluetooth devices (i.e. Bluetooth is OFF). Hold the On button on your earpiece (it has the symbol of a phone on it) for 6-10 seconds. The light on the earpiece remains lit. Now your earpiece is in discovery mode. On your IPhone, go to Settings, General, Bluetooth. Turn Bluetooth ON. Now your phone and your earpiece are both in discovery mode. When you see "Headset" listed, select it and enter the password "0000". Your IPhone is now paired with your H500 headset.

That solves the iPhone/H500 issue.

Next, I paired my H500 with my Macbook. Easy Peasy.

Now, I'm trying to pair the phone with my Macbook. No success so far but I'll continue to investigate.

EDIT: apparently, the only use for pairing the phone with a Mac is for tethering. I don't need tethering (yet). No need for me to pair the phone with the Mac at this time if it will only allow tethering.