🚀 go-pugleaf

In article <vZAAwiA+v96woA0r@turnpike.com>
   David English <DavidE@turnpike.com> writes:
> >
> >AT&F (set factory defaults) expands to:
> > AT B1E1F0L1M1N1Q0V1W0X4Y0 &C0&D0&G0&K3&P&Q5&S0&T4&Y0 %C3%E0 \A1\G0\L0
> 
> How do you work this out?  It is dificult to be sure what the state of
> the modem is without the S-Registers, particularly as \N is missing.

I just went through the modem manual, noting the default values. Of-
course there was an easier way:

> Could you please post the output of say AT&F0&V.  Thanks.

AT&F0&V

ACTIVE PROFILE:
B1 E1 L1 M1 N1 Q0 T V1 W0 X4 Y0 &C0 &D0 &G0 &J0 &K3 &Q5 &R1 &S0 &T4 &X0 &Y0
S00:000 S01:000 S02:043 S03:013 S04:010 S05:008 S06:002 S07:050 S08:002 S09:006
S10:014 S11:095 S12:050 S18:000 S25:005 S26:001 S36:007 S37:000 S38:020 S44:020
S46:138 S48:007 S95:000 

(...)

OK

I've ignored the stored profiles as they're not in use here.

However, the fact remains that both the working and failing INIT strings 
included &F0, so any paramaters previously excluded from the analysis 
were the same in both working and failing cases (although the additional 
information may help others trying to get a non-Zoom modem into the same 
state as my working Zoom).

> X3 also enables blind dialing ( I.e. dialing regardless of whether there
> is a dial tone.  Presumably, you do know you are dialing the right
> number, i.e. ringing and then a carrier.

Yes (see below).

> Could you please describe the characteristics of the working and failing
> connections.  Are the working connections V.42 (error detecting), are
> they V.42bis (data compressing).  Do the failed connections get an
> answer, do they start to handshake, is there a connected message, do
> they get a login prompt?

Both "working" and "failing" connections connect, go through the login 
procedure, display motd, etc. The dialer "window" then closes and I'm 
returned to the KA9Q net> prompt. The difference is that the working 
string then allows me to continue from here (the time connection is made, 
then mail is sent, news collected, etc) whereas the other doesn't budge 
from here, and "ppp sl0" indicates that PPP hasn't started properly.

Because of the differences in the two init strings, I don't get 
sufficient information back to to confirm the V.42bis (etc) state; I'll 
try modifying the init strings to report as much info as possible and try 
again, on the assumption (which should be quickly confirmed) that the 
difference in reporting won't affect the connection itself in any way.

Unfortunately, the problems last night (continual CBNL's, presumably as a 
result of the Raduis problems?) meant that doing any experiments last 
night was out of the question. Indeed, I may well leave the tests until 
the weekend when the lines are less busy anyway. (I would try now (ie 
during the daytime), but I *should* be working.)

> Dave English, T U R N P I K E  Ltd

What is the Turnpike recommended string for the Zoom V.32? What about for 
the USR which someone else is struggling with?

Mark.
-- 
int MeaningOfLife (void) { return 42; }   // mcr@holly.demon.co.uk
function MeaningOfLife :integer; begin MeaningOfLife := 6 * 9 end;