From: Thomas Surber (tsurber@xxxxxxxxxxxxx)
Date: Wed Aug 30 2000 - 21:23:32 GMT-3
Some gas stations use it for the card swipe at the pump. Think about the
data in a card swipe, not much there to send or receive, a D channel does
the job. You can bring all the pumps back to a site then run them into a
credit card clearing house, or if you have the volume get your own MIP
(MasterCard interface processor) to query member banks or get a stand in
from day olds or the MIP itself to verify the card, 90 seconds max from
swipe to yea or nay, that is the goal using the D channel, yea sure 90
seconds. ;-)
Thomas Surber
----- Original Message -----
From: "Sam Munzani" <sam@chinet.com>
To: "Dayes, Rex (NRSW N6112)" <Dayes.Rex@NI.CNRSW.navy.mil>
Cc: "Clifton Stewart" <cliftonlstewart@home.com>; <ccielab@groupstudy.com>
Sent: Wednesday, August 30, 2000 6:22 PM
Subject: RE: X25 on the D-Channel]
> That's really good to know. I remember somebody telling me about credit
> card machines running on D channels. I didn't believe him at that time. He
> might be right.
>
> Sam
>
> On Wed, 30 Aug 2000, Dayes, Rex (NRSW N6112) wrote:
>
> > Pacific Bell/SBC offered a tariff just for this service called 0B+D. No
> > bearer channels are provided and only the D channel is used.
> >
> > -----Original Message-----
> > From: Sam Munzani [mailto:sam@chinet.com]
> > Sent: Wednesday, August 30, 2000 2:26 PM
> > To: Clifton Stewart
> > Cc: ccielab@groupstudy.com
> > Subject: Re: X25 on the D-Channel]
> >
> >
> > I checked the config out on web. However that sample uses Public X25
> > network as X25 call termination on one side. Other side is already
> > connected to cloud via sync interface. Do you have the same scenario?
> >
> > I don't know if this helps, but if you do connect 2 routers back to back
> > using sync interface. You have to configure one router as encap x25 DCE
> > and provide clock. In cisco sample each end is DTE because public
network
> > is DCE.
> >
> > I hope this helps,
> >
> > Sam
> >
> > On Wed, 30 Aug 2000, Clifton Stewart wrote:
> >
> > > Sam,
> > >
> > > You are correct in thinking that the d channel is used for signaling.
In
> > > fact it tears down the circuit. But according to CCO see the below
URL;
> > > it can be done. I seem to be missing something but don't know what. I
> > > have spent alot of hours on getting it work. Wanted to move on to
> > > something else but can't help myself;} This is why this could be
useful.
> > > Let's say you have two routers where you are already using both
serials,
> > > sure you can connect the aux ports and do Async Routing but if the two
> > > routers are 2503 or 2504 that leaves interfaces unused that could be
> > > used to make a scenerio more complicated. Which it has, to the point
> > > where i can't get it to work! But thanks for your response.
> > >
> > > -Cliff
> > >
> > > http://www.cisco.com/warp/customer/133/x25_over_isdn.html
> > >
> > >
> > > Sam Munzani wrote:
> > > >
> > > > I might be wrong on this but so far I know D channel is being used
for
> > > > signaling. I mean call setup and tear up. Unless you are using ISDN
in
> > > > dedicated mode, you can't use D channel for some other purpose. If I
am
> > > > wrong please tell me what am I thinking wrong?
> > > >
> > > > Sam
> > > >
> > > > On Wed, 30 Aug 2000, Clifton Stewart wrote:
> > > >
> > > > >
> > >
> >
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