Hello,
For some reason unknown to me, I sent a nice juicy email to the list the other
day but it never got through. Instead I got some message from Listar saying
that my post contained a valid listar command yadda yadda. Anyway the message
never got through so I am reposting it now below, because it took me some time
to do and also at least explains about some of those init string commands that
we have all been talking about.
On the subject of init strings, i'm trying Neil's init string, hopefully it will
help improve my connection up (although I am doubtful.... i get pessimistic). I
would add that maybe S11=40 should be added, this will speed up the dialling
quite a bit (don't put it lower than 40 though).
There appeared to be some lack of certainty as to how certain modem commands
works. Thankfully the Dynalink manual is quite good, (briefly) here's what it
says:
_+MS - Select Modulation_ [why isn't it SM then? Or maybe S&M ;o) ]
USAGE
+MS=<mod>[,[<automode>][,[<min_rate>][,[<max_rate>][,[<x_law>][,[<rb_signalling>]]]]]]]
followed by a carriage return.
Subparameters not entered (e.g.enter only a comma) remain at their defaults [or
your preset if you use Y1/Y2 I presume].
_MOD_ : A number which specifies the preferred modulation to use (if automode is
on) or the only acceptable modulation (if automode is off). Briefly, the
options are:
9 = v32 (4800+9600)
10 = v32bis (4800-14400)
11 = v34 (2400-33600)
56 = K56flex
However, after sending the AT+MS? command, my modem returned 12 as the MOD! I
can only assume that this is a v90 modulation, and therefore wasn't in the
manual because the modem was not v90 compliant at that time, only K56flex. My
modem also returned 33600 after all the other numbers - wonder what it
represents?
_AUTOMODE_ : Determines whether the modem can negotiate the modulation. Default
is 1 (enabled). Automode always connects at the highest possible speed.
_MIN_RATE / MAX_RATE_ : Determines the highest and lowest acceptable connect
rates. They must be within the modulation's values, otherwise that argument is
disregarded.
_X_LAW_ : "An optional number which specifies the codec type. The options are:
0 = 5-Law [Micro]
1 = A-Law [Er..?]"
An ATZ command will reset this to 0 (5-Law).
_RB SIGNALLING_ : An optional number which enables or disables robbed bit
signalling generation in a modem. The options are :=
0 = Disabled (default)
1 = Enabled
_%E - Enabled/Disable Line Quality Monitor and AutoRetrain or Fallback/Forward._
Controls whether the modem automatically monitors the line quality and request a
retrain, or fall back when the quality is insufficient or fall forward when
line quality is sufficient. The parameter value valid is written to S34 bits 2
& 6. The modem attempts to retrain for 30 seconds.
%E0 : Everything disabled.
%E1 : Enable only line quality monitor & auto retrain.
%E2 : As %E1, but also enable fallback/forwards (default).
%E3 : As %E2, but also hang up when EQM reaches hang-up threshold.
_S-Register 202_
No reference to S202 in the manual =(
_%C-Enable/Disable Data Compression_
%C0 : Disabled.
%C1 : MNP5 data compression.
%C2 : v42bis data compression.
%C3 : Combines both %C1 and %C2 (default).
Phew! Ok, that's a wrap - probably this was a complete waste of time, because we
still don't know what S202 does, but at least we know what the rest is for.
On a totally unrelated subject (well, still nc related) what should I have the
buffer set to in genesis prefs - i set it to 32768 the rationale being "bigger
is better"), but should i set it back to the default of 16k of leave it as it
is?
Regards,
--
Isaac
[EMAIL PROTECTED]
ICQ 12863991
http://www.bigfoot.com/~eyesy/
