As far as I know, Native ISDN does not support callback. Therefore, you
can't use callback with the normal LAP-D signaling over the D-channel
(out-of-band signaling). You must use PPP (or ARAP if an Appletalk network)
which uses in-band signaling. The "dialer in-band" is required. Look at both
at the physical interface and the dialer interface and you will probably see
"encap ppp", "ppp callback", callback-secure", etc.
JMHO
Regards,
MLC
NRS Hariharan <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi all,
> I have installed a 2503 router for ISDN dial back for a leased
line.The
> vendor who configured it has included the following commands in the dilaer
> interface .
>
> (1) #dialer in-band
>
> and
>
> (2) #dialer wait-for-carrier-time 60
>
> Since the above commands should not be used for ISDN i removed
them .
> But when I saved the new config and saw the file,the following commands
were
> also missing fom the dialer interface which was there previously :
> #dialer idle-timeout
> #dialer string xxxxx Class xx
> #dilaer hold-queue xx
> #dialer load-threshold xxx either
> #dialer-group x
>
> and the only commands which were present from the previous config
were
> :
> #ip address negotiate
> #no ip directed-broadcast
> #encapsulation ppp
> #ppp authentication pap callin
> #ppp pap sent-user xxxx password xxxx
>
> Can anyone provide a solution for the above
>
> Thanks in advance
>
>
> hari
>
>
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