In a message dated 08-13-95, Bill Grimsley said to Michael Raiteri:

BG>Michael, at 19:06 on Aug 11 1996, you wrote to Bill Grimsley...

BG> Has it not yet occurred to you that your phone lines 
BG> are probably the cause of your less-than-optimal connects?

MR> Yes it has but I doubt there is anything I can do about it.

BG>Exactly, so there's no point slagging off at your modem for 
BG>something which is quite obviously beyond its control, is 
BG>there?

True however I'm not sure phone lines are the problem.  If the stats I posted
bring this out then fair enough.  BTW which ones do I look for and what are
acceptable ranges.

BG>You have shitty lines, and the best modem in the world is 
BG>not going to change that fact.  It's bad luck, but you're 
BG>basically stuck with it.

True but it still alter the fact my Dynalink will not negotiate _any_ sort of
connection with at least two BBS' and ISP' using an init string of
AT&F1&HI&R2X1
or including &K0.  It just squeals during negotiation but does not connect.  I
can then  hang up and use an init string of AT&F1&k0X1S32=12S33=32 and get a
14400 connect with those same BBS' and ISP _every_ time. Why won't my Dynalink
negotiate down without having to be set at 14400 (before you ask I have checked
and they _all_ have 28800 modems but I don't know what sort). Shitty lines
should not cause that.

MR> I am interested in is FALLBACK=DISABLED. What sort of fallback would that 
MR> be and is that the default.

BG>If you bothered reading the manual, you'd find that to be irrelevant.

I have read the manual cover to cover and it doesn't mention it. Fortunately I
found the file on Davids BBS which is a better Sportster manual which mentions
it.

MR> BTW on each of these calls I was using Dynalinks 
MR> recommended init string of AT&F1&H1&R2X1.

BG>They wouldn't know a decent init$ if it bit them on the 
BG>arse.  The &H1&R2 are defaults for the &F1 template anyway. 
BG> You DO have a manual, dont you?

Yes I do have a manual and I know those settings are the defaults however
Dynalink acknowledge that those settings are required because the modem
sometimes forgets the defaults. Now please don't ask me to explain that one I'm
just relaying the message. Apparently even though &H1 is the default
for AT&F1
it won't always stop a Dynalink from using &H2 unless its included in the
dialling init string.  I think I recall Tom Przeor posting a message where he
set S15=136 and even used &W but his modem seemed to sometimes forget the
setting.  Its just another example of the quality of Dynalinks.  Non existent.

BG> AT&F1&K0 is still the optimal init$ for the Dynalink with dodgy BTLZ. 

I agree

MR> Dynalink don't agree and my ISP reckons that I _have_ 
MR> to have V.42 enabled 
MR> for their modems (still trying to find out what sort they are)

BG>For Christ's sake Mike, &K0 only disables V.42bis data 
BG>compression.  V.42 (LAPM with MNP4 fallback) is enabled by 
BG>default with the &F1 template.

I know that however you suggested disabling the V42 detection stage. I wasn't
sure how that would work with a provider that _required_ V42. I know it has
nothing to do with V42bis.

BG>That's as clear as I can make it for you.  If you still 

Thanks it all helps.  Is there any manual/publication/file which sets out how to
compare the stats produced by ATI6 ATI11 and ATY11 with perfect/ideal ones and
what to do.

BG>can't grasp that, perhaps you'd better give up modems 
BG>altogether...

I've thought about it lately with this one anyway. There is one thing you may be
able to add.  On one particular BBS I connect then about 20 seconds later it
drops carrier. ATI6 displays the reason for the disconnect as GSTN cleardown. I
can't find anything on GSTN cleardown.  Can you shed any light on it?

Cheers
Mike
Internet: mraiteri{at}dyson.brisnet.org.au
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