Subj : proposed new nodelist
To : Goran Eriksson
From : Jasen Betts
Date : Tue Jul 16 2002 01:04 pm
Hi Goran.
14-Jul-02 11:19:32, Goran Eriksson wrote to mark lewis
ml>> personally, i don't see any problem/difference between ISDN and
ml>> POTS other than one being digital and the other being analogue...
ml>> i've never had any problem picking up my POTS telephone and
ml>> calling someone with an ISDN phone and talking to them... yes, i
ml>> know there are several variations of ISDN that are incompatible
ml>> with each other but that is taken care of with the current ISDN
ml>> flags, right?
GE> There is at least one form of incompatibility between a POTS only
GE> system and an ISDN only system that isn't quite straightforward
GE> from current nodelist practice
GE> That's when the ISDN system uses equipment that doesn't support
GE> any of the traditional telephony modem communication standards
GE> (but only digital ISDN standards)
GE> This is probably one such example from nodelist 2002:186:
GE> Yes, it's possible to deduce that this system probably isn't
GE> reachable by a conventional modem for dial-up POTS lines only.
a nodelist modifier could put that node on "hold" so that crashmail goes to
its hub or coordinator
GE> The announced maximum data speed is 300 bps and there is no telephony
GE> modem communications standard (such as V.32bis, V.34 or V.90)
GE> announced
yeah the lack of an analog protocol flag is a clue, even 300bps nodes
should fly the a V21 flag.
GE> But I would be surprised if there is no mailer out there which at
GE> least may take some manual reconfiguration not to attempt calling
GE> that particular system when presented with a piece of non-routable
GE> mail destined there. Not to speak of what it would take to
GE> redirect that mail to the host or hub of such a destination
The hold flag should do the trick as I read the specification.
you can't put that flag in the distribution nodelist but putting it in the
local copy should work.
-=> Bye <=-
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