GSM current and voltage level

Hi,

I need to find the voltage and current rating of the GSM signal for ensuring a reliable PCB RF trace. I am using SIM900 GSM module which has a maximum transmit power of 2W. How can I find the voltage and current? I have searched the internet for one of the values but couldnt find anything.

Kindly help me out. Thanks in advance.
Regards

you can measure power level over different frequencies using spectrum analyzer..
http://www.ni.com/white-paper/3622/en

Thanks for the reply. However, I am interested in the current and voltage values individually. Is there a method to measure them individually?