Any person offering for sale or selling telephone handsets or keysets or private branch exchanges or private automatic branch exchanges of not more than 20-station capacity, whether new or reconditioned, shall specify in all advertisements and catalogs therefor, except point-of-sale advertising, and on or in the equipment package both of the following:
(a) Whether the equipment employs pulse, tone, pulse-or-tone, or other signaling method, and a general description of the services it can or cannot access as a result thereof.
(b) Whether the equipment is registered with the Federal Communications Commission pursuant to Part 68 of Title 47 of the Code of Federal Regulations.