§  51.100   General duty.

   (a) Each telecommunications carrier has the duty:

   (1) To interconnect directly or indirectly with the facilities and
   equipment of other telecommunications carriers; and

   (2) To not install network features, functions, or capabilities that do
   not comply with the guidelines and standards as provided in the
   Commission's rules or section 255 or 256 of the Act.

   (b) A telecommunication carrier that has interconnected or gained
   access under sections 251(a)(1), 251(c)(2), or 251(c)(3) of the Act,
   may offer information services through the same arrangement, so long as
   it is offering telecommunications services through the same arrangement
   as well.

Subpart C--Obligations of All Local Exchange Carriers