Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!netsys!vector!telecom-gateway From: paul@nsacray.uucp Newsgroups: comp.dcom.telecom Subject: Miscellaneous Comments Message-ID: Date: 13 May 89 19:33:57 GMT Sender: news@vector.Dallas.TX.US 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 164, message 6 of 7 I believe an RJ31 is an oversized modular connector with eight wires. They are used a lot in multiline dialers, etc. If there is interest, I can post what each wire is used for (I think it's pretty standard - My Mitel Smart-1 Call Controller uses them). As for using an operator when a COCOT keypad disconnects, generally if you explain this to the operator, the call will go through at regular rates (no surcharge). It was mentioned a few weeks ago that AOSs seem to have incomplete Calling Card databases. This is true, as there is no central point for calling card info. Certain independants have refused to give out this info. Also, the private verification databases don't have corporate cards (yet). So anyway, you can use just about any number as a calling card (just make sure it meets modulo 13 checks). There is an old story about the president of Microdevices (an AOS) using the president of ITI's (another AOS) home number with a made up PIN whenever he was in an ITI serviced hotel. There is a catch here, some sleazy COCOTs (and some AOSs - ITI started this), use the AT&T calling card database. What they do is after receiving the calling card number, they (the payphones or AOS switches) dial 10288 + 0 + NPA + NXXXXXX then dial the credit card number. By `listening' for the 'thankyou for using AT&T' (really energy detect with timing) they can determine if it is a valid card. As for using two payphones to make third party calls...... AOSs will be hit the worst (because of their backwards technology). Students often do this from their dorm rooms. It is true that in certain areas payphones were assigned a special office code, or last four digits (often beginning with a nine). This generally is not true for COCOTs. This makes screening difficult. A natural addition to AOS software would be to do lookups on third party billing numbers against other payphones on the switch, since COCOT payphones usually come in banks. AT&T and the other majors will eliminate this problem with LIDB lookup via CCS7. -------- Paul Guthrie chinet!nsacray!paul Zippy says: HOORAY, Ronald!! Now YOU can marry LINDA RONSTADT too!!