# 47 CFR 4.7 - Definitions of metrics used to determine the general outage-reporting threshold criteria.

*Administrative numbers*are defined as the telephone numbers used by communications providers to perform internal administrative or operational functions necessary to maintain reasonable quality of service standards.

*Assigned numbers*are defined as the telephone numbers working in the Public Switched Telephone Network under an agreement such as a contract or tariff at the request of specific end users or customers for their use. This excludes numbers that are not yet working but have a service order pending.

*Assigned telephone number*minutes are defined as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the sum of the number of assigned numbers (defined in paragraph (b) of this section) potentially affected by the outage and the number of administrative numbers (defined in paragraph (a) of this section) potentially affected by the outage. “Assigned telephone number minutes” can alternatively be calculated as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the number of working telephone numbers potentially affected by the outage, where working telephone numbers are defined as the telephone numbers, including DID numbers, working immediately prior to the outage.

*DS3 minutes*are defined as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the number of previously operating DS3 circuits that were affected by the outage.

*Working telephone numbers*are defined to be the sum of all telephone numbers that can originate, or terminate telecommunications. This includes, for example, all working telephone numbers on the customer's side of a PBX, or Centrex, or similar arrangement.

(a) Administrative numbers are defined as the telephone numbers used by communications providers to perform internal administrative or operational functions necessary to maintain reasonable quality of service standards.

(b) Assigned numbers are defined as the telephone numbers working in the Public Switched Telephone Network under an agreement such as a contract or tariff at the request of specific end users or customers for their use. This excludes numbers that are not yet working but have a service order pending.

(c) Assigned telephone number minutes are defined as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the sum of the number of assigned numbers (defined in paragraph (b) of this section) potentially affected by the outage and the number of administrative numbers (defined in paragraph (a) of this section) potentially affected by the outage. “Assigned telephone number minutes” can alternatively be calculated as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the number of working telephone numbers potentially affected by the outage, where working telephone numbers are defined as the telephone numbers, including DID numbers, working immediately prior to the outage.

(d) DS3 minutes are defined as the mathematical result of multiplying the duration of an outage, expressed in minutes, by the number of previously operating DS3 circuits that were affected by the outage.

(e) User minutes are defined as:

(1) Assigned telephone number minutes (as defined in paragraph (c) of this section), for telephony, including non-mobile interconnected VoIP telephony, and for those paging networks in which each individual user is assigned a telephone number;

(2) The mathematical result of multiplying the duration of an outage, expressed in minutes, by the number of end users potentially affected by the outage, for all other forms of communications. For wireless service providers and interconnected VoIP service providers to mobile users, the number of potentially affected users should be determined by multiplying the simultaneous call capacity of the affected equipment by a concentration ratio of 8.

(f) Working telephone numbers are defined to be the sum of all telephone numbers that can originate, or terminate telecommunications. This includes, for example, all working telephone numbers on the customer's side of a PBX, or Centrex, or similar arrangement.

**Title 47 published on 2015-10-01**

The following are **ALL** rules, proposed rules, and notices (chronologically) published in the Federal Register relating to *47 CFR Part 4* **after** this date.

GPO FDSys XML | Text type regulations.gov FR Doc. 2015-27926 RIN GN Docket No. 15-206 FCC 15-119 FEDERAL COMMUNICATIONS COMMISSION Proposed rule. Submit comments on or before December 3, 2015 and reply comments by December 18, 2015. 47 CFR Parts 1, 4 In this document the Federal Communications Commission (Commission) proposes to require submarine cable licensees, as a condition of their license, to report on outages involving either lost connectivity or degradation of 50 percent or more of a submarine cable's capacity for periods of at least 30 minutes, regardless of whether the cable's traffic is re-routed. The Commission seeks comment on whether this reporting system is necessary, whether the proposed reporting triggers are appropriate, and whether the reporting system proposed is the most efficient means to accomplish the Commission's goals of gaining visibility into the operational status of submarine cables. The document also seeks comment on ways in which the Commission can act to improve the submarine cable deployment process either on its own accord or by coordinating with other stakeholders.