xxv310 xml files configuration

I downloaded the xml provision files for the vvx310 polycom phone at I downloaded the files from http://support.polycom.com/PolycomService/support/us/support/eula/ucs/UCagreement_5_4_0_combined.html

Changed the 000000000.xml to the macaddress.xml. I do not see a sip.cfg but a sit.cfg? Some kind of typo on Polycom part? Anyway, its been a long time trying to recall which files need to be changed to match my vvx310

Can some one guide me to the configuration of the xml files would much appreciate it.