Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!netsys!vector!telecom-gateway From: levin@bbn.com (Joel B Levin) Newsgroups: comp.dcom.telecom Subject: Re: More Comments on Busy Line Verification Facilities Message-ID: Date: 11 Oct 89 20:21:51 GMT Sender: news@vector.Dallas.TX.US Reply-To: Joel B Levin Organization: BBN Communications Corporation Lines: 41 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 442, message 7 of 9 In article kitty!larry@uunet.uu.net (Larry Lippman) writes: |In article claris!netcom!edg@ames. |arc.nasa.gov (Edward Greenberg) writes: |> We soon learned that we could reach the verification operator by |> dialing the affected prefix and 9901 (or, "official 1"). Then WE |> could tell the verification operator to do her thing. | | What you relate is rather unusual. I can conceive of no... When I was an undergrad in greater Boston (~20 years ago) and we did a little desultory phone hacking (we spent most of our energy cracking the Computer Center's SDS-940 :-)), we learned about some set of numbers I no longer recall exactly. NNX-9901, -9902, -9903, etc. (or some subset thereof) could be used to reach what we believed to be a verification operator, a rates-and- routing operator, and a DA or TSPS supervisor (or both). I don't remember whether all NNX's supported this. Certainly all the business offices were NNX-9950 (our radio station was -9550 and we got a lot of wrong numbers). A lot of these things I am sure are no longer true. Nets: levin@bbn.com | or {...}!bbn!levin | POTS: (617)873-3463 | [Moderator's Note: All the 9900 series of numbers used to be used by IBT and many other telcos. IBT still uses quite a few of them. Years ago, 9900 and 9901 were the Chief Operator; 9902 was verification; 9903 through 9906 were direct lines to Directory Enquiry. 9954 looped around to 9955 and outpulsed '611', to get the repair desk in a given office. If you were quick enough, you could dial anything you wanted out on 9955 if you got your dialing finished before the call-extender cut in. 9990 through 9999 were test lines; always busy, silent termination, etc. 994x and 996x generally just terminated in the frames on the supervisor's desk or vicinity. Finally, 9411 was nearly always the business office. That much has stayed intact: The Illinois Bell Corporate Headquarters in Chicago is 312-727-9411. PT]