[cisco-voip] ISDN SIMULATOR ISDN BRI-U and BRI-S/T

[Manoj Kalpage]

Thanks Walt,

Does DSU convert BRI "U" to BRI "S/T"?

If I get BRI "U" simulator, do I need the "U" to "S/T" converter for
connect VIC2-2BRI-NT/TE card?

Best regards,
Manoj


On 8/31/07, Walt Moody <moody at arizona.edu> wrote:
> Howdy.
>
> The BRI "U" interface is the two-wire interface that would take service
> from a central office to a subscriber's premises.  It normally
> terminates on an NT-1.
>
> The BRI "S/T" interface is the four-wire interface from the NT-1 to the
> telephone equipment.
>
> -walt
>
> Manoj Kalpage wrote:
>
> > Hi All,
> > I am looking for ISDN simulator for CCIE voice lab. I found there are
> > two type of ISDN simulators at http://www.vconsole.com/ as bellow.
> >
> > ISDN BRI/ST
> > http://www.vconsole.com/2-Port-T1/E1/PRI-+-8-port-BRI-S/T-ISDN-Simulator-p-15.html
> >
> > ISDN BRI-U
> > http://www.vconsole.com/2-Port-T1/E1/PRI-+-8-port-BRI-U-ISDN-Simulator-p-14.html
> >
> > First thing, I cannot understand is what is the different between
> > BRI-U and BRI-S/T and next thing is which one is good for CCIE voice
> > LAB.
> >
> > Are these good or anyone know any other product which is better than this?
> >
> > Best regards,
> > PERE
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> >
>