How to view the SIP status?

[BK <kibeki@xxxxxxx>]

Hi,

this is a simple question to you, i hope.

I just want to see the registered status of sip device.

What must the op_buttons/ob_style look like?

This seemes not to be enough? The led is always green.
[SIP/100];
Position=3;
Label="100";
Extension=100;
Context=sip-global;
Icon=1;

Thanks you very much.