I sent a copy of this thread to my brother (who also has ISDN - and has
had many of the same problems) - and this is his reply:
=== begin reply ===
Subject:
Re: Take a look at this message thread...
Date:
Sun, 10 Feb 2002 08:50:03 -0600
On my very first attempt at using ISDN, I bought the equipment the
ISP told me to buy and I configured it the way they told me to. It
would not connect. My solution was to give my modem to the ISP and
say "make it work." Then, when I brought it back to my place and it
still did not work, I could yell at the telco with some success.
I like the firmware upgrade suggestion the best, given that modem B
on the same line calling the same number worked, but modem A did not.
(If I remember correctly.)
Bennette
- - - - - - - - - - - - - - - - - - - - - - - - -
Dr. Bennette R. Harris
Department of Mathematical and Computer Sciences
University of Wisconsin-Whitewater
=== end reply ===
Jim Harris wrote:
> I don't buy this....
>
> If I remember correctly (and if I don't....) the situation was something
>
> like this:
>
> (1) Modem "A" (the alledgedly bad modem) could successfully dial the
> ISP ISDN at phone number "XXX"
> (2) The ISP changes it's number to "YYY"
> (3) Modem "A" -cannot- reach number "YYY" however modem "B" can.
>
> I contend that this is a compatibility issue - centering on the POP
> (radius) switch at the C/O.
>
> This means:
> (a) The Radius (or whomever's) POP switch at the C/O is not set up
> correctly.
> (b) You may need a firmware update to your modem - if they've decided
> to use a different protocol (I know this was true on occasion with V.90
> dial-up modems - I'm not so sure with ISDN)
>
> In any event - you had a working connection that suddenly died when the
> ISP changed phone numbers - IMHO, you need to yell at the ISP and have
> THEIR tech-support people guide you down the path of riteousness. (and
> you should make it clear that "go out and buy another modem" is NOT the
> right answer!!!)
>
> Jim
>
> [EMAIL PROTECTED] wrote:
> > Yep. The modem was the problem.
> >
> > Steve.
> >
> > -----Original Message-----
> > From: Michael Barnes [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, 8 February 2002 00:02
> > To: [EMAIL PROTECTED]
> > Subject: RE: [STN] ISP Change = Toast!
> >
> >
> > BUT, I CAN dial in successfully using the same ISDN line and calling the
> > same number with a different modem. To me, that points to my modem.
> > But
> > I've never heard of a modem that would have problems dialing a specific
> > prefix (777). The ISP advertises one phone number for everyone who uses
> > ISDN dial-in. It's on a huge rotary. The likelihood of hitting the
> > same
> > inbound number over several days is not high.
> >
> > Thanks for your comments.
> >
> > Michael
> >
> >
> > > -----Original Message-----
> > > From: Jim Harris [mailto:[EMAIL PROTECTED]]
> > > Sent: Wednesday, February 06, 2002 20:44
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: [STN] ISP Change = Toast!
> > >
> > >
> > > Michael,
> > >
> > > I will admit I am reaching here - but here goes:
> > >
> > > Two possible scenerios:
> > > (1) The ISP's POP (point-of-presence) equipement at the telco office
> > > may be flakey... (and it will NOT be the first time this has happened
> > > either!) Especially as you CAN dial in to the same ISP using a
> > > different phone #.
> > > (2) There may be C/O (central office) issues with the telco
> > > connection
> > > itself.
> > >
> > > In any event - YOU do NOT own the issue - it is a hardware
> > > issue outside
> > > of your control.
> > >
> > > Suggestion: Call the ISP and complain bitterly.
> > >
> > > Jim
> > >
> > > Michael Barnes wrote:
> > > > This is really weird. It looks now as if the problem is
> > > with my modem.
> > > > I
> > > > am using a US Robotics ISDN TA. I have made two completely new
> > > > floppies,
> > > > one for the old ISP, one with the new ISP. I have
> > > carefully checked the
> > > > envi file, both are exactly identical except for the IP
> > > address and the
> > > > phone number. Both behave identically, except when they go
> > > to dial.
> > > > When
> > > > dialing the old ISP, it connects and establishes
> > > communication almost
> > > > immediately. On the new ISP, I get alarms, no dialtone, and short
> > > > connection errors. About every third dial attempt, the
> > > ISDN TA shows a
> > > > fault and resets as if the ISDN line drops out. The phone
> > > number for
> > > > the
> > > > ISP is 777-4736. So I hooked my laptop directly to the ISDN TA and
> > > > dialed
> > > > with Hyperterm. Calling the old ISP dials through and connects.
> > > > Calling
> > > > the new ISP causes it to drop the ISDN line.
> > > >
> > > > I have a second ISDN line and service through the new provider for a
> > > > separate purpose. It uses a 3Com Office Connect LAN Modem.
> > > It dials the
> > > > same number, uses a different IP address. I have switched
> > > ISDN lines
> > > > between the two with the same results. It appears that the ISDN TA
> > > > blows up
> > > > when trying to dial the 777 prefix.
> > > >
> > > > Anybody run into anything like this before? Ideas, comments?
> > > >
> > > > Thanks,
> > > > Michael
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > > > > Sent: Monday, February 04, 2002 23:25
> > > > > To: [EMAIL PROTECTED]
> > > > > Subject: [STN] ISP Change = Toast!
> > > > >
> > > > >
> > > > > I changed ISP so I had to change both the ISDN dial-up number
> > > > > and the IP
> > > > > addresses on one of my STN boxes. Now I'm dead in the water.
> > > > > I found
> > > > > the earlier posts on ISP number changes (THANKS!) so I found
> > > > > the other
> > > > > locations the numbers were and changed them, but still no luck. I
> > > > > changed all back to original, and can't even connect with
> > > my previous
> > > > > ISP (account still active). It will try to dialout and give me:
> > > > >
> > > > > Starting Link
> > > > > report (connect)
> > > > > abort on (busy)
> > > > > abort on (error)
> > > > > abort on (no carrier)
> > > > > send (atdt 1234567^m)
> > > > > expect (connect)
> > > > > connect script failed
> > > > > alarm
> > > > > failed
> > > > >
> > > > > Then a few minutes later start all over again.
> > > > >
> > > > > When I first boot, it does connect briefly and give me a
> > > > > message about
> > > > > serial connection made, then a SIGHUP and modem disconnect,
> > > > > of course, I
> > > > > can't get it to do it again, so I can't see the exact
> > > mesages, but it
> > > > > disconnects after 0.4 minutes.
> > > > >
> > > > > I have a printout of the original envi file and
> > > everything is back to
> > > > > where it was as far as I can tell, but I still can get no
> > > > > connection to
> > > > > the old ISP.
> > > > >
> > > > > Here it is, it connects:
> > > > >
> > > > > send (atdt1234567^m)
> > > > > expect (connect)
> > > > > atdt1234567^m^m
> > > > > connect
> > > > > --got it
> > > > > Serial Connection established
> > > > > connect:ppp0 <--> /dev/cua0
> > > > > Hangup (SIGHUP)
> > > > > modem hangup
> > > > > connection terminated
> > > > > connect time 0.4 minutes
> > > > >
> > > > > Then it repeats the cycle again and again. Not always in the same
> > > > > sequence. Sometime with the connection and hangup and
> > > sometimes with
> > > > > the connect script failure.
> > > > >
> > > > > Any ideas greatly appreciated.
> > > > >
> > > > > Michael
> > >
> >
> > ------------------------------------------------------------
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> >
> >
> >
>
>
>
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