Section 18K. Sections 18A to 18J, inclusive, shall not be construed to limit or expand the authority to regulate communication service providers under chapters 159 or 166 nor construed to authorize the department, or any other agency, department or subdivision of government, to regulate the rates, terms or conditions of interconnected VoIP service providers or IP–enabled services, other than for the enhanced 911 surcharge or the provision of enhanced 911 services under said sections 18A to 18J, inclusive.