§  64.6300   Definitions.

   (a) Authenticate caller identification information. The term
   "authenticate caller identification information" refers to the process
   by which a voice service provider attests to the accuracy of caller
   identification information transmitted with a call it originates.

   (b) Caller identification information. The term "caller identification
   information" has the same meaning given the term "caller identification
   information" in 47 CFR 64.1600(c) as it currently exists or may
   hereafter be amended.

   (c) Intermediate provider. The term "intermediate provider" means any
   entity that carriers or processes traffic that traverses or will
   traverse the PSTN at any point insofar as that entity neither
   originates nor terminates that traffic.

   (d) SIP call. The term "SIP call" refers to calls initiated,
   maintained, and terminated using the Session Initiation Protocol
   signaling protocol.

   (e) STIR/SHAKEN authentication framework. The term "STIR/SHAKEN
   authentication framework" means the secure telephone identity revisited
   and signature-based handling of asserted information using tokens
   standards.

   (f) Verify caller identification information. The term "verify caller
   identification information" refers to the process by which a voice
   service provider confirms that the caller identification information
   transmitted with a call it terminates was properly authenticated.

   (g) Voice service. The term "voice service"--

   (1) Means any service that is interconnected with the public switched
   telephone network and that furnishes voice communications to an end
   user using resources from the North American Numbering Plan or any
   successor to the North American Numbering Plan adopted by the
   Commission under section 251(e)(1) of the Communications Act of 1934,
   as amended; and

   (2) Includes--

   (i) Transmissions from a telephone facsimile machine, computer, or
   other device to a telephone facsimile machine; and

   (ii) Without limitation, any service that enables real-time, two-way
   voice communications, including any service that requires internet
   Protocol-compatible customer premises equipment and permits out-bound
   calling, whether or not the service is one-way or two-way voice over
   internet Protocol.