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From: dattier@ddsw1.mcs.com (David Tamkin)
Newsgroups: comp.dcom.telecom
Subject: Re: Ring-Back and Finding Own Number
Message-ID: <13875@accuvax.nwu.edu>
Date: 20 Oct 90 18:37:26 GMT
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X-Telecom-Digest: Volume 10, Issue 751, Message 5 of 9


Pat Townson replied to Andy Jacobson in volume 10, issue 723:

| [Moderator's Note: I've since found that 571 (wait for dial tone,
| flash hook, dial 6 and hang up, then get ring back) throughout
| northern Ilinois' old 312 code has been replaced by 1-57x-last four of
| your phone number (get fresh dial tone, dial 6 and hang up, then get
| ring back) throughout 708 and 312.  PAT]

Not "throughout" by any means.  It certainly doesn't work from here in
Centel's part of 312, and I tried all ten possible 1-57X-[last four]
possibilities.

Pat, did it work from your cellular service?

290 stopped working here for reading back your own number when it was
assigned as a prefix in Elk Grove Village.  Now that the 290 in Elk
Grove Village is in another area code, dialing 290-XXXX within 312
from my Centel service gives fast busy for most XXXX but four quick
beeps and then silence on 312 290 1111.  1-290-anything gets an
intercept.


David Tamkin  Box 7002  Des Plaines IL  60018-7002  708 518 6769  312 693 0591
MCI Mail: 426-1818  GEnie: D.W.TAMKIN  CIS: 73720,1570   dattier@ddsw1.mcs.com


[Moderator's Note: No, it won't work on cellular, because Ameritech
uses DID trunks, does it not? I've tried it. It appears to work, but
never gets around to ringing me back. It no doubt rings back on
312-228-xxxx (whatever outgoing trunk I seized when I placed the
call).  I've noticed the ANI reported when I use the cell phone to
call the 800 number was a number totally different than mine. The
number reported by ANI, when dialed back, is listed to IBT Co. in
Hickory Hills, IL and is not for incoming service.  PAT]