[hoggle]

As you seem to be well informed about the topic: Do you know if it is usual for cellphone designers to use the optional headset/headphone combination as an extended antenna and if so if it is still better to prefer it to a bluetooth based solution? I think this is something a lot of people would like to know as heavy cellphone use ia often unavoidable these days.

[dfox]

Almost all phone manufacturers use headset cable as FM antenna. On the other hand there is almost no way how it could be used as antenna for anything other than FM. (antennas for GSM/GPS/WiFi/whatever bands are carefully designed devices with tight tolerances and not pieces of wire of some approximate length)

[charltones]

Purely anecdotal but when on site at Nokia and Sony Ericsson >5 years ago it seemed that nearly everyone used the wired headset so I started too. More recently I don't see that as much.