No Connection to Bluetooth Device

Hello Everyone,

I have a GPS Device, with which I can communicate over my Laptop without any problems. On my Smart Device (IPAQ 214) on the other hand I am just not able making a Connection. I have Windows Mobile 6.1 installed. He finds the device, but when I wanna connect to it, he asks me for a code, which I ignore and then he says unable making a connection. (On the Labtop I don't need a code)

I appriciate any kind of help very much, thanks!