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- Path: sparky!uunet!spool.mu.edu!telecom-request
- Date: Sun, 13 Sep 1992 19:52:38 GMT
- From: sullivan@warschawski.geom.umn.edu (John M. Sullivan)
- Newsgroups: comp.dcom.telecom
- Subject: Re: Bad Connection to MCI
- Message-ID: <telecom12.705.5@eecs.nwu.edu>
- Organization: Geometry Center, Univ. of Minnesota
- Sender: Telecom@eecs.nwu.edu
- Approved: Telecom@eecs.nwu.edu
- X-Submissions-To: telecom@eecs.nwu.edu
- X-Administrivia-To: telecom-request@eecs.nwu.edu
- X-Telecom-Digest: Volume 12, Issue 705, Message 5 of 11
- Lines: 50
-
- Thanks to all who responded to my question about trouble establishing
- MCI service. In fact the most useful response was not posted, but
- came as e-mail from an MCI supervisor in North Carolina, who confirmed
- that "2ED" is the tag for MCI's switch in Minneapolis (Minnesota
- junction 1), and apologized for their entry-level customer service rep
- not recognizing this.
-
- When I gave him the phone number in question, he was able to remove
- the "block" on the line promptly. It had evidently been placed so
- long ago that the reason was no longer in the computer, but probably
- another customer had unpaid bills.
-
- I am still surprised that this was not found by MCI when my friend
- first called to tell them about her new number, or when we called
- later to report the problem. It seems that if MCI regularly blocks
- access from certain numbers they'd know to check this possibility.
-
- I'm not sure exactly whether this block is what ATT's Al Varney called
- a Selective Carrier Denial; he seemed to imply that the SCD was
- something placed by the local telco, but this block was by MCI. (And
- I don't know what he meant by "FG-D access".)
-
- Varney quotes me and responds:
-
- >> (If I dial 10-xxx-1-700-555-4141 for a random choice of "xxx", I hear
- >> a very long pause with some touchtones in the background, and finally
- >> "doo-wee-dee Your call failed. Please try again".)
-
- > This is not consistent with your claim that 10288 and 10333 would
- > complete ten-digit calls. Nor is the announcement consistent with the
- > selection of an invalid XXX value. Maybe you picked XXX values for
- > ICs that don't support "700-555-1212" identification.
-
- Maybe my use of "random" was confusing. I did get service with 10288
- and 10333, and got MCI's "vacant code" with 10222. I tried 10999, not
- remembering that it would reach Metromedia. So I just tried one more
- code, that I chose randomly. It may have been 10764, but I didn't try
- to remember it, if that would reach anyone. I'll try again when I get
- home, since my experience didn't seem to be typical. And this time
- I'll have a copy of the TELECOM Digest list of codes. By the way,
- that night when I had the MCI problem, I was trying to call a local
- number that had an invalid exchange, just to hear if USWest's message
- would have a tag like "2ED". Not having a phone book, I tried
- 999-9999. I got a message "the number you have dialed, 341-9999, ...".
- What happened there?
-
-
- John Sullivan
-
-