Mobile phone connected to Lightspeed 3G?

[Kiltie]

How do I connect my Nokia phone to the Lightspeed 3G headset? They are supposed to be cellphone compatible but I think I need to get a special lead to connect the two.

[IO540]

The Safety Cell is one old solution

http://www.headsetsetc.com/safetycell1.html

which works very well. I have one, with the Nokia adapter.

On the ground only; once airborne it may work but the connection is normally very unreliable, even at low levels like 2000ft.