Blutooth cell phone

I have two blutooth cells. None of them is on MB phon list, and none of them can be connected to the COMAND. I am sure I turned the cell bluetooth connection on and let COMAND search for the blutooth phone.
Has anyone successfully connected the cell which is NOT one of those MB listed phones? Thanks.

Maybe my cell is too cheap. I don't see any 'search' function other than turning bluethooth on or off. Mine is samsung SGH-A737, one of the cheapest cell.
- Place the head unit in discoverable mode
- While in standby mode, press the left soft key for Menu
- Select Settings (9)
- Select Set Connectivity (6)
- Select Bluetooth (1)
- Select My Devices (2)
- Search for the Bluetooth device by pressing the left soft key for Select
- Press the left soft key for Yes to Activate Bluetooth & start the search
- Highlight the desired Bluetooth Device, using the navigation keys, then press the left soft key for Select




