The TA that we are using uses the standard AT command set, and since it
communicates asynchronously with the router, a DDR config for a TA should be
very similar to one with a modem. The aux port is configured just as it
would be with a modem, and you use chat scripts to send dialing and
configuration commands to the TA. The TA converts from async PPP to synch
PPP, but in this configuration only one B channel can be used, which is fine
since our aux port can only do 38400.
> I have always learned, at least in the telecom world that I am in, that a
> modem is a modulator/demodulator (converting analog to digital and
digital
> to analog) and used on an analog circuit. CSU/DSU's are used on digital
> ckts.
>
> It is my understanding that unlike POTS lines which carry analog (voice)
> signals from c.o. to the computer, ISDN carries signals in digital form
from
> modulation/demodulation is not necessary - the TA is just an interface
> between the ISDN line and the computer.
>
> Why, then can't a TA be configured to successfully connect to an AUX
port?
> Why does the router see the TA as a modem?
>
> mjs
>
>
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Brad Ellis
> > Sent: Friday, June 30, 2000 5:55 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Connecting ISDN to Aux
> >
> >
> > Tony,
> >
> > If you have an ISDN modem, it's pretty much the same thing as an analog
> > modem (from the routers perspective). If you are trying to plug the
ISDN
> > line directly into the AUX port, I wish you the best of luck.
> >
> > -Brad
> > "Tony Russell" <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > Has anyone successfully connected an ISDN modem to the Aux port. If
so,
> > pls
> > > reply or send config.
> > >
> > > Tony Russell
> > >
> > > ___________________________________
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> >
> >
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>
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