Sony Ericsson T300 + bluetooth

[alextgreen]

Just in case anyone is looking for a PAYG phone, orange.co.uk are doing T300s with camera and text saver package (5 free messages a day) for a ton.

Anywho, main question was about bluetooth support, I don't really mind that the T300 doesn't have it - I was just curious about how bluetooth support is implemented, SE phones have a bluetooth dongle, but do compatible phones need specific (internal) hardware to deal with this?

[gobblit]

t300 aren't blue tooth do have IR ports so still can transfer images and business cards.
i think they are hardware based, but you can buy handsfrees for some phone that come with an attachment to make them blutooth.
Some phones such as the 7650 i think only use bluetooth for data they won't use it for speech so pointless if your looking to use the hands free.