Sec. 68.222  AIOD trunk and station number verification.

    (a) Verification requirements--(1) General. The proper 
identification of 4-digit PBX-central office trunk numbers and PBX 
station numbers for purposes of Automatic Identified Outward Dialing 
(AIOD) shall be verified as a part of initial installation and 
subsequent installer performed additions to and rearrangements of AIOD 
functions.
    (2) Trunk numbers. A 4-digit trunk number identified for each PBX-
central office trunk, when seized, shall be the same as the 4-digit 
trunk number assigned by the telephone company at the PBX-central office 
trunk interface.
    (3) Station numbers. The 4-digit station number identified for each 
station, incoming tie trunk, and the attendant when connected to a PBX-
central office trunk shall be verified to:
    (i) Be in the group of station numbers assigned by the telephone 
company and,
    (ii) Be the same as the number assigned to or intended to correspond 
uniquely to the station, tie trunk, or attendant.
    (b) Verification personnel. Operations associated with the 
verification of AIOD trunk and station number assignments shall be 
performed under the supervision and control of a supervisor, as defined 
in paragraph (c) of this section. The supervisor and installer may be 
the same person.
    (c) Supervision. Operations by installation personnel shall be 
performed under the responsible supervision and control of a person who:
    (1) Has at least six months of on-the-job experience in the 
installation of telephone terminal equipment;
    (2) Has been trained by the registrant in the operation of the AIOD 
feature and in the performance of operations needed to verify proper 
identification procedures and results.
    (3) Or, in lieu of paragraphs (c)(1) and (c)(2) of this section, is 
a licensed professional engineer in the jurisdiction in which the 
installation is performed.
    (d) Verification procedure. The installation supervisor shall notify 
the telephone company that the required verification tests have been 
performed. Such notification need not be made in writing. Such 
notification shall include the following information:
    (1) The responsible supervisor's full name, business address and 
business telephone number; and
    (2) The date when AIOD service involving the trunk and station 
numbers verified will start, the date when the verification test took 
place, and a list of the trunk and station numbers actually assigned.

[ 45 FR 20853 , Mar. 31, 1980]

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