§ 64.2201   Ringing indication requirements.

   (a) A long-distance voice service provider shall not convey a ringing
   indication to the calling party until the terminating provider has
   signaled that the called party is being alerted to an incoming call,
   such as by ringing.

   (1) If the terminating provider signals that the called party is being
   alerted and provides an audio tone or announcement, originating
   providers must cease any locally generated audible tone or announcement
   and convey the terminating provider's tone or announcement to the
   calling party.

   (2) The requirements in this paragraph apply to all voice call
   signaling and transmission technologies and to all long-distance voice
   service providers, including local exchange carriers as defined in
   § 64.4001(e), interexchange carriers as defined in § 64.4001(d),
   providers of commercial mobile radio service as defined in § 20.3 of
   this chapter, providers of interconnected voice over Internet Protocol
   (VoIP) service as defined in 47 U.S.C. 153(25), and providers of
   non-interconnected VoIP service as defined in 47 U.S.C. 153(36) to the
   extent such providers offer the capability to place calls to or receive
   calls from the public switched telephone network.

   (b) Intermediate providers must return unaltered to providers in the
   call path any signaling information that indicates that the terminating
   provider is alerting the called party, such as by ringing.

   (1) An intermediate provider may not generate signaling information
   that indicates the terminating provider is alerting the called party.
   An intermediate provider must pass the signaling information indicating
   that the called party is being alerted unaltered to subsequent
   providers in the call path.

   (2) Intermediate providers must also return unaltered any audio tone or
   announcement provided by the terminating provider.

   (3) In this section, the term “intermediate provider” has the same
   meaning as in § 64.1600(f).

   (4) The requirements in this section apply to all voice call signaling
   and transmission technologies.

   (c) The requirements in paragraphs (a) and (b) of this section apply to
   both interstate and intrastate calls, as well as to both originating
   and terminating international calls while they are within the United
   States.

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Subpart X—Subscriber List Information

   Source:  64 FR 53947 , Oct. 5, 2000, unless otherwise noted.

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