CTIA, the industry group that represents wireless companies, has filed a motion to intervene in cases appealing the Federal Communication Commission’s rules on the open Internet. The group is siding with the commission, which is being sued by consumer advocates who sat net neutrality rules should apply equally to mobile and wireline Internet.

“Petitioners challenge the FCC’s determination that ‘wireless is different’ and its decision to regulate mobile services more lightly,” the group’s court filing reads. “CTIA wishes to defend the FCC against that challenge and any related arguments that the FCC erred in imposing too few regulatory burdens.”

The industry group said, however, that it will not intervene in a separate lawsuit filed by Verizon Wireless that questions whether or not the commission has the right to create rules regarding net neutrality.