Get "System Tab" over API

Hello,

I am trying to get the system tab "Delivery Status" over API but I can't find the information.

I find the name of the custom tabs but not the system tabs.

Can somebody can give me an advice where I can find this information ?

 

I want to read the "Delivery Status" and import it to Quality Center.

Caliber 11.3.0.98

 

Best Regards

Bülent