Freaks Macintosh Archive/Freaks Macintosh Archive.bin/Freaks Macintosh Archives/Phreaking⁄Wardialers/Phreaking texts/Part68&Ringbacks.txt

Text File | 1999-01-28 | 12KB | 539 lines

~Subject: Part 68 and ringbacks

Organization: PANIX Public Access Unix, NYC

~Date: Sun, 21 Feb 1993 20:29:55 GMT

~Lines: 251







Someone posted a question to this group, namely how to find out

how to make the phone line ring back for testing newly installed

wiring.  I responded that the way to find out is to call your telco,

since under Part 68 they have to tell you.  (This is in the US only.)

I also acknowledged that many telcos play dumb and say they are not

aware they have to reveal the ringback number.



A number of readers have written to me since then asking where they

could find the regulation that requires this, and I assume it is so

they can show it to their local telco who is playing dumb.



So here it is, in case it may be helpful.



If you are like me you will read the section hoping to find a place

where it says "the telco has to tell you how to do ringback".  Those

words do not appear.  Instead, the section talks about contacting

the telco to see if it is available.   A telco that wants to be a

jerk will say, yes it is available, but not to non-telco employees,

thus they do not have to tell you.  That's the wrong answer.  What

the section means is if their switch does not have the feature at all,

then they don't have to tell you since there is no such number.

But if there is such a feature and they make it available to their

own installers, they have to make it available to you.







  Title 47--Telecommunication; Revised as of October 1, 1991



  CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION

  SUBCHAPTER B--COMMON CARRIER SERVICES



  PART 68 --CONNECTION OF TERMINAL EQUIPMENT TO THE TELEPHONE

NETWORK

  Subpart C--Registration Procedures



  Sec. 68.213 Installation of other than "fully protected"

non-system premises wiring.





  47 CFR 68.213



  (a) Scope of this rule.  Provisions of this rule are limited to

"unprotected" premises wiring used with simple installations of

wiring for one and two-line residential and business telephone

service.  More complex installations of wiring for multiple line

services, for use with systems such as PBX and key telephone

systems, are controlled by sec. 68.215 of these rules.



(b) Wiring authorized.  "Unprotected" premises wiring (wiring

which is not located electrically behind apparatus which protects

against hazardous voltages and imbalance) may be used to connect

units of terminal equipment or protective circuitry to one

another, and to the network interface (or demarcation point), if

installed in accordance with these rules.  Subsequent relocation

of a demarcation point may be arranged, either at the

subscriber's request or on the serving telephone company's

initiative, but the serving telephone company shall not

discriminate in its treatment of demarcation point location, or

relocation.  Responsibility for the protector (and its associated

grounding) on the network side of the demarcation point rests

with the telephone company, though the subscriber is responsible



for consequences resulting from erroneous wiring procedures

conducted under his or her direction.  Responsiblity for wiring

on the subscriber's side of the demarcation point (including any

protector that maybe installed as part of the premises wiring)

purchased inplace or wholly or partially new, rests with the

owner (or subsequent owner) of the wiring.



  (c) Material requirements.  Conductors shall have insulation

with a 1500 Volt rms breakdown rating.  This rating shall be

established by covering the jacket or sheath with at least six

inches (measured lineraly on the cable) of conductive foil, and

establishing a potential difference between the foil and all of

the individual conductors connected together, such potential

difference gradually increased over a 30 second time period to

1500 Volts rms, 60 Hertz, then applied continuously for one

minute.  At no time during this 90 second timeinterval shall the

current between these points exceed 10 milliamperes peak.



  (d) Attestation.  Manufacturers (or distributors or retailers,

whichever name appears on the packaging) of non-system telephone

premises wire shall attest in a letter to the Commission that the

wire conforms with Part 68, FCC Rules.



  (e) Notice to the telephone company.  Subscribers performing

installation, connection, disconnection, reconfiguration or

removal of premises wiring to or from the telephone network

shall, upon request of the telephone company, inform the

telephone company of:



  (1) The responsible subscriber's telephone number(s).



  (2) A description of the location of the jack to which the

premises wiring isto be connected.



  (3) A statement that all applicable rules, building codes and

electrical codes will be complied with.



  (4) The wire manufacturer, or brand name, and model number, if

any, of the wire used.



  (f) Acceptance testing.  Non-system premises wiring installed

in accordance with these rules shall be tested under the

acceptance tests specified in this subsection whenever an

operation associated with any installation, reconfiguration or

removal of wiring (other than final removal) is performed.

Atelephone which responds to ringing shall be used to perform the

tests when the CPE connected or to be connected to the premises

wiring does not itself provide ringing.



  (1) Dial tone testing.  A telephone connected with the line(s)

shall be used to perform this test in the following order:



  (i) Lift the handset of the telephone to create the off-hook

state on the line under test.



  (ii) Listen for noise.  Confirm that there is neither audible

hum nor excessive noise.



  (iii) Listen for dial tone.  Confirm that dial tone is present.



  (iv) Break the dial tone by dialing a digit.  Confirm that dial

tone is broken as a result of dialing the digit.



(v) With dial tone broken, listen for audible hum or excessive

noise, which could indicate a faulty connection.  Confirm that

there is neither audible hum nor excessive noise.



  (2) "Ringback" testing.  A telephone connected to the

subscriber's line(s) shall be used as follows:



  (i) Either make a "ringback" call if the service is available

(contact the local telephone company to determine the

availability of and procedure for utilizing such ringback

service) or have another person dial the number of theline being

tested.



  (ii) Permit the telephone to ring for one minute (usually

twelve rings).



  (iii) Lift the handset off the telephone for five seconds or

longer, as necessary.



  (iv) Hang up.  Check return of normal dial tone.



  (3) Failure of acceptance tests.  Absence of dial tone before

dialing or inability to break dial tone during either test

indicates failure of premises wiring.  Failure to receive ringing

during the "ringback" testing may indicate failure either of the

wiring or of the ringer in the telephone; if necessary,

substitute a telephone which is known to be operating to

determine which is at fault.  Upon any failure, the failing

equipment or portion of the premises wiring shall be

disconnnected from the telephone network, and may not be

reconnected until the cause of the failure has been isolated and

removed.  Any previously tested line(s) shall be retested if it

was in any way involved inthe isolation and removal of the cause

of the failure.



  (g) Extraordinary procedures.  The local telephone company is

hereby authorized to limit the subscriber's right of connecting

one and two-line non-system premises wiring.



  (1) Conditions which may invoke these procedures.  The

extraordinary procedures authorized herein may only be invoked

where one or more of the following conditions is present:



  (i) Information provided by the subscriber gives reason to

believe that a violation of Part 68 of the FCC's rules is likely.



  (ii) A failure has occurred during acceptance testing.



  (iii) Harm has occurred, and there is reason to believe that

this harm was a result of wiring operations performed under this

section.





The extraordinary procedures authorized in the following

subsections shall not be used so as to discriminate between

installations by local telephone company personnel and

installations by others.  In general, this would require that any

charges for these procedures be levied in accordance with, or

analogous to, the "maintenance of service" tariff provisions: if

the installation proves satisfactory, no charge should be levied.



  (2) Monitoring or participation in acceptance testing.  Notwithstanding

the pr

evious subsection, the local telephone

company may monitor or participate in acceptance testing at the

time of the initial installation of wiring in the absence of the

conditions listed therein; at any other time, one or more of the

listed conditions shall be present.  Such monitoring or

participation in acceptance testing should be performed from the

central office test desk where possible to minimize costs.



  (3) Inspection.  Subject to paragraph (g)(1) of this section,

the local telephone company may inspect wiring installed pursuant

to this section.  To minimize disruption of the premises

communications system, we are limiting theright of inspecting

wiring as follows:



  (i) During initial installation of wiring: The telephone

company may require withdrawal of up to 5 percent (measured

linearly) of wiring run concealed in ducts, conduit or wall

spaces, to determine conformance of the wiring to the information

furnished by the subscriber.



  (ii) After failure of acceptance testing or after harm has

resulted from installed wiring: The telephone company may require

withdrawal of all wiring runconcealed in ducts, conduit or wall

spaces which reasonably could have caused the failure or harm, to

determine conformance of the wiring to the information provided

by the subscriber.



  (4) Requiring the use of protective apparatus.  In the event

that any of the conditions listed in paragraph (g)(1) of this

section, arises, and is not permanently remedied within a

reasonable period, the telephone company may require the use of

protective apparatus which protects against hazardous voltages.

Such apparatus may be furnished either by the telephone company

or bythe subscriber.  This right is in addition to the telephone

company's rights under sec. 68.108.



  (5) Notice of the right to bring a complaint.  In any case

where the telephonecompany invokes the extraordinary procedures

of sec. 68.213(g), it shall afford thesubscriber the opportunity

to correct the situation which gave rise to invoking these

procedures, and inform the subscriber of the right to bring a

complaint to the Commission pursuant to the procedures set forth

in Subpart E ofthis part.  On complaint, the Commission reserves

the right to perform any of the inspections authorized under this

section, and to require the performance ofacceptance tests.



  SOURCE: 49 FR 21734, May 23, 1984, as amended at 50 FR 29392,

July 19, 1985; 50 FR 47548, Nov.  19, 1985; 51 FR 944, Jan.  9,

1986



  AUTHORITY: Secs.  4, 201, 202, 203, 204, 205, 208, 215, 218,

226, 313, 314, 403, 404, 410, 602, 48 Stat.  as amended, 1066,

1070, 1071, 1072, 1073, 1076, 1077, 1087, 1094, 1098, 1102; 47

U.S.C.  154, 201, 202, 203, 204, 205, 208, 215, 218, 226, 313,

314, 403, 404, 410, 602, unless otherwise noted.



0068 00190







--

Carl Oppedahl AA2KW  (intellectual property lawyer)

30 Rockefeller Plaza

New York, NY  10112-0228

voice 212-408-2578     fax [phone]







call your local telco today!



-marauder

(we ain't afraid of no NOC)