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From: ddl@husc6.harvard.edu (Dan Lanciani)
Newsgroups: comp.dcom.modems
Subject: Re: New Modems, Telebit Fails under impairments in PC Magazine
Message-ID: <4889@husc6.harvard.edu>
Date: 2 Dec 90 20:06:22 GMT
References: <1715@chinacat.Unicom.COM> <36349@cup.portal.com>
Distribution: na
Organization: Harvard University, Cambridge MA
Lines: 26

In article <36349@cup.portal.com>, cec@cup.portal.com (Cerafin E Castillo) writes:

[ ... ]
| PEP's failure in the impaired line tests was due to the lack of use, by
| PCMag, of the hidden registers in the modem firmware (S120/J6S36).

	Well, gee, that seems perfectly reasonable.  After all, if the
registers are hidden and undocumented then the typical end-user can't
use them either...

| These
| registers affect packetization for better survival of connection and
| throughput over adverse line conditions ONLY.  It was not in Telebits
| best interest to start talking about or publishing this kind of information.

	Considering all the worry about the review, maybe it would have
been in their best interest to document the registers after all...

| Only recently has Telebit Tech Support introduced a document detailing
| the use of these registers.  Thus, in default PEP packetizing mode, the
| failure of PEP was legitimate.

	How does one get obtain document?

				Dan Lanciani
				ddl@harvard.*