Pace56 Modem Init strings

TinCool

Can someone tell me the format of the initialisation string for the pace modem ? I'm trying to access the site but it keeps crashing my browser

WhiteWashMan

what string are you looking for?
what do ytou want it to do?

WhiteWashMan

s chapter describes all of the commands that are available when the modem is in data
communications mode. Details of the environments in which they are used is given in previous
chapters. See later chapters for descriptions of the applicable commands for fax and voice modes.

Where applicable, the associated options and default for each command is shown. The command line
must start with 'AT' and be terminated by <Return> or <Enter>. More than one command may be
entered on one line. If commands are entered without a parameter, 0 is assumed, e.g. ATH is
equivalent to ATH0. If a parameter outside the permitted range is entered, the ERROR message is
returned.

Note: The default settings for your modem may differ from those listed here. See the supplied
Installation Guide for details of any differences.

Many AT commands alter the current configuration of the modem. These changes remain in effect
until another AT command overrides the settings or the modem is reset. These customised settings can
be saved within the modem's permanent memory as a user default by using the &W command which
is described later. Use the &W command when you wish the modem to subsequently use your
customised settings every time it is turned on or reset.


A Answer :
The A command forces the modem to check that the handset is in use or that RING has been detected.
It then goes on-line in answer mode, gives out an answer tone and waits for a response. The modem
returns the ERROR message if the above condition is not met. Once on-line the modem remains in
answer mode for the period specified in register S7 before returning to local mode with the NO
CARRIER message, or connecting to an incoming carrier and giving a CONNECT message.

The command is commonly used to switch from a previously established voice link to a data link so
that data transfer can take place. The remote modem issues the D command. In this respect, the A and
D act as a command pair and are used in conjunction with each other. The A command is not related
to the automatic answer facility which allows the modem to respond automatically to incoming calls.


A/ Re-execute Command :
The modem behaves as though the last command line had been re-sent by the DTE. "A/" will repeat
all the commands in the command buffer.

The principal application of this command is to place another call (using the Dial command) that
failed to connect due to a busy line, no answer, or a wrong number. This command must appear alone
on a command line. This command should not be terminated by a carriage return.


\A Maximum MNP block size :
Options : \A0, \A1, \A2, \A3
Default : \A3

The \A command defines the maximum data block size for an MNP error corrected link. Unless the
line quality is particularly poor, larger block sizes produce better throughput.

\A0
selects 64 character maximum block size.
\A1
selects 128 character maximum block size.
\A2
selects 192 character maximum block size.
\A3
selects 256 character maximum block size.


B CCITT or Bell selection :
Options : B0, B1
Default : B0

This command selects Bell or CCITT (ITU-T) modulations for the line speed connections of 300 bps
or 1200 bps according to the parameter supplied. Any other line speeds use CCITT (ITU-T)
modulation standards.

B0
selects CCITT(ITU-T) modulations.
B1
selects Bell modulations (not normally used in the UK).


\B Transmit a break :
Options : \B1 to \B9
Default : N/A

The \B command forces the modem to transmit a BREAK to the remote system. For error corrected
connections the \K command controls the behaviour of the modem in response to the \B command.

In non-error corrected mode the break length is specified by the number associated with the option.
\B1 transmits a break length of 100ms, \B2 200ms and so on.

Under error corrected conditions the break length is not user selectable. If no connection is established
the ERROR message is returned.


C1 Carrier Control :
This command is included for compatibility only, and has no effect other than returning a result code.
The only valid parameter is 1.


%C Data compression select :
Options : %C0, %C1, %C2, %C3
Default : %C3

The %C command is used to set the data compression protocol on an error corrected link. See the
chapter Error correction and data compression for further details.

%C0
Disables data compression.
%C1
Enables MNP5 data compression only.
%C2
Enables V.42bis data compression only.
%C3
Enables automatic selection of V.42bis or MNP5 data compression as appropriate.


&C DCD (Data Carrier Detect) option :
Options : &C0, &C1
Default : &C1

The DTE or communications software you run may require DCD to be enabled at times.

&C0
will force the DCD signal active irrespective of a valid incoming carrier.
&C1
will force DCD to follow the state of the incoming data carrier i.e. when a carrier is received
DCD is made active.


#CID Caller ID :
Options : #CID?, #CID=?, #CID=0,1,2
Default : #CID=0

Enables or disables Caller ID.
#CID=0
Disables Caller ID. (Default.)
#CID=1
Enables Caller ID with formatted presentation to the DTE. The modem will present the data items in
a pair format. The expected pairs are data, time, caller code (telephone number), and name. As
shown below.

RING

DATE = 0220
TIME = 1255
NMBR = 01274-538000

RING

RING

#CID=2
Enables Caller ID with unformatted presentation to the DTE. The modem will present the entire
packet of information, excluding the leading U's, in ASCII printable hex numbers. As shown below.

RING

801B11010101083032323031333031020C30313237342D35333830303057

RING

RING

#CID?
Retrieves the current Caller ID mode from the modem.
#CID=?
Returns the mode capabilities of the modem in a list with each element separated by commas.


D Dial :
The D command instructs the modem to go on-line in originate mode. If followed by a telephone
number your modem dials the number and waits for an answer tone from the remote modem. Upon
receiving an answer tone, connection is attempted. If the connection is established, data transfer can
take place.

A number of commands are also valid parameters within the dial string. These are described in detail
in the Automatic dialling chapter. The commands are: 0-9 @ ^ (circumflex) , (comma) ! L P S=n ;
(semi-colon) T W In addition, the * (star) and # (gate) characters can be used if recognised by your
telephone exchange. However, these two characters can only be used when tone dialling.

Entering D by itself can be used to switch a previously established voice link to a data link (see the A
command). The modem returns the ERROR message if the handset was not previously in use.


&D DTR (Data Terminal Ready) option :
Options : &D0, &D1, &D2, &D3
Default : &D2

This command determines the modem's response to ON-to-OFF transitions of the DTR signal from
the DTE.

DTR drop is interpreted according to the current &Q setting as below:

&D0
&Q0, &Q5, &Q6 - DTR is ignored (assumed ON). Allows operation with computers which do
not provide DTR.
&D1
&Q0, &Q5, &Q6 - DTR drop is interpreted by the modem as if the asynchronous escape
sequence had been entered. The modem returns to asynchronous command mode without
disconnecting.
&D2
&Q0, &Q5, &Q6 - DTR drop causes the modem to hang up. Auto answer is inhibited. This is
the most convenient means of terminating a call in progress.
&D3
&Q0, &Q5, &Q6 - DTR drop causes the modem to perform a soft reset as if the Z command
had been received. The &Y setting determines which profile is loaded.


E Echo select :
Options : E0, E1
Default : E1

The E command is used to enable or disable the echo of AT commands when in local mode. With
echo enabled (E1) the modem echoes back commands sent from the DTE. If an echo facility within
your DTE software is also enabled you will see two of each character entered as part of the command
line. To avoid this either disable local echo within your DTE or issue the E0 (echo off) command to
the modem.

With echo off and no DTE local echo the AT command lines that you enter are not visible.


%E Automatic retrain and rate change select :
Options : %E0, %E1, %E2, %E3
Default : %E2

This command controls whether the modem monitors the line quality and what action it takes when
changes in line quality are detected. When %E1 is selected, if the line signal quality of a connection
degrades to an unacceptable rate, a retrain (perform a new handshake and attempt to restart) is
attempted. After three consecutive unsuccessful retrain attempts, the line is dropped. When %E2 is
selected, the modem changes line speed to a higher (or lower) value depending on the receive signal
quality.

%E0
disables automatic retrain.
%E1
enables automatic retrain.
%E2
enables automatic fall back and fall forward rate change.


F Communication mode select :
Options : F0, F1, F3 to F10, F13 to F21
Default : F0

The F command is used to preset the line speed. This is a fixed speed at which the connection must be
established otherwise no connection is made at all. If automode (F0) is enabled all line speeds are
available and connection is made at the highest common speed between both modems. See the chapter
Baud rate control for more information.

F0
automode (all supported speeds)
F1
V.21 or Bell 103 ~#
F13
V.34 14400 bps
F3
V.23 only
F14
V.34 16800 bps
F4
V.22 or Bell 212A ~#
F15
V.34 19200 bps
F5
V.22bis only
F16
V.34 21600 bps
F6
V.32 or V.32bis 4800 bps
F17
V.34 24000 bps
F7
V.32bis 7200 bps
F18
V.34 26400 bps
F8
V.32 or V.32bis 9600 bps
F19
V.34 28800 bps
F9
V.32bis 12000 bps
F20
V.34 31200 bps
F10
V.32bis 14400 bps
F21
V.34 33600 bps

~# Dependent on the B command setting.

&F Restore factory defaults :

When using the modem you may decide to change some of the S register and AT command settings.
These values can be stored for future use as a User default setting using the &W command.

The &F command is used to restore the original factory default settings for AT commands and S
registers (with the exception of register S80).

When used on its own the &F command temporarily restores the factory default settings until the
modem is next powered up.

When used in conjunction with the &W command (AT&F&W) the User defaults are made the same
as the selected factory default setting permanently. This command overwrites any changes you have
made to the User default setting.


H On/off hook :

In the same way that a telephone is said to be on-hook or off-hook, the modem has the same two
states. When not in use the modem is on-hook. It automatically goes off-hook when an attempt is
made to dial or an incoming call is detected with auto answer enabled.

Issuing the H0 command puts the modem on hook and consequently terminates the call. This can only
take place after the escape sequence puts the modem into command mode. H0 also terminates any &T
test in progress. Dropping DTR is often a more convenient method of terminating a call.

H1 takes the modem off hook in command mode. The modem returns on-hook after the period
specified in register S7.


+Hn Enable/Disable RPI and DTE Speed :
Options : +H0, +H1, +H2, +H3, +H11, +H16
Default : +H0

This command enables or disables Rockwell Protocol Interface (RPI) processing and sets the DTE
speed.
+H0
Disable protocol interface and video ready mode.
+H1
Enable RPI mode and set DTE speed to 19200 bps.
+H2
Enable RPI mode and set DTE speed to 38400 bps.
+H3
Enable RPI mode and set DTE speed to 57600 bps.
+H11
Enable RPI+ mode.
+H16
Enable video ready mode

When in RPI+ mode, a link is established between the modem and the WinRPI or WinRPI95 host PC
software driver to allow the modem to support protocol (V.42bis/LAP-M/MNP2-5) connections with
a remote modem. This command should only be used when the WinRPI or WinRPI95 driver software
is installed in the PC.


I Identify :

The I command is used to request information from the modem as listed below:

I0
returns a number indicating the maximum baud rate of the modem.
I1
requests a pre-computed checksum of the modem's internal ROM.
I2
computes the checksum and compares it with the value stored in the ROM. If the check passes, the
OK message is returned.
I3
requests the version number of the firmware.
I4
returns the modem's identification followed by its version number.
I5
returns the country identification for the modem.
I6
reports the modem data pump model.


&J Telephone jack control :
This command is included for completeness and performs no function within the modem.


&K DTE-to-modem flow control :
Options : &K0, &K3, &K4, &K5, &K6
Default : &K3 (&K6 fax)

Both software (XON/XOFF) and hardware (RTS/CTS) flow control are available when the modem is
communicating with the local DTE.

When the modem's internal data buffer is virtually full it issues an XOFF and/or drop CTS instructing
the DTE to stop sending data. When the buffer is nearly empty the modem issues an XON and/or
raises CTS to resume data flow.

In software flow control (&K4) the XON/XOFF characters are filtered out of the data stream by the
modem before being transmitted to the remote modem. Transparent XON/XOFF flow control (&K5)
does not filter these characters. Instead the modem allows them to be transmitted to the remote DCE to
instruct it to stop sending data.

&K0
disables flow control. The XON/XOFF characters are ignored and CTS is held active (HIGH) by
the modem.
&K3
enables hardware RTS/CTS flow control.
&K4
enables software XON/XOFF flow control.
&K5
enables transparent XON/XOFF flow control.
&K6
enables both RTS/CTS and software XON/XOFF flow control.


\K Break control :
Options : \K0, \K1, \K2, \K3, \K4, \K5
Default : \K5

The \K command determines how the modem responds to a break received from the local DTE or the
remote modem or the \B command when in on-line command mode.

The table below shows the behaviour in different scenarios.

Break received from
remote systems
Break received from DTE
when transferring data
Effect of \B command on
an error corrected link
\K0
Data buffers cleared.
Break transmitted
immediately
Enter on-line command
mode
Data buffers cleared. Break
transmitted immediately
\K1
Data buffers cleared.
Break transmitted
immediately
Data buffers cleared. Break
transmitted immediately
Data buffers cleared. Break
transmitted immediately
\K2
Break transmitted
immediately
Enter on-line command
mode
Break transmitted
immediately
\K3
Break transmitted
immediately
Break transmitted
immediately
Break transmitted
immediately
\K4
Break transmitted in
sequence with data
Enter on-line command
mode
Break transmitted in
sequence with data
\K5
Break transmitted in
sequence with data
Break transmitted in
sequence with data
Break transmitted in
sequence with data


-K MNP Class 10 extended services :
Options : -K0, -K1, -K2
Default : -zK0

The -K command determines whether a V.42 LAPM connection is converted to an MNP Class 10
error corrected link.

-K0
disables V.42 LAPM to MNP Class 10 conversion.
-K1
enables V.42 LAPM to MNP Class 10 conversion. It gives priority during error correction
negotiation to MNP over LAPM.
-K2
Enables V.42 LAPM to MNP 10 conversion; inhibits MNP Extended Services initiation during
V.42 LAPM answer mode detection phase.


L Speaker volume :
Options : L0, L1, L2, L3
Default : L2

The L command sets the in-built speaker volume. The M command controls when the speaker is
enabled. Take care not to select the HIGH volume setting if using headphones connected to the rear
panel socket of a voice modem.

L0
selects LOWEST speaker volume.
L1
selects LOW speaker volume.
L2
selects MEDIUM speaker volume.
L3
selects HIGH speaker volume.


%L Line signal level :
When in on-line command mode, this command returns a value which indicates the signal level
received at the telephone line interface. A value of less than 20 indicates a strong signal level. A value
greater than 30 indicates a weak signal level.


M Speaker control :
Options : M0, M1, M2, M3
Default : M1

The M command is used to specify when the modem's built-in speaker is active. Speaker volume is
determined by the L command.

M0
disables the speaker completely so that no audible call progress is provided.
M1
enables the speaker through dialling. Upon establishing a connection the speaker is disabled.
M2
permanently enables the speaker. Should be used to give an audible indication of the call progress
to assist in diagnosing any possible difficulties in establishing a connection.
M3
enables the speaker after dialling. Upon establishing a connection the speaker is disabled.


&M Asynchronous/synchronous mode selection (External modems only) :

A subset of the &Q command. Provided for compatibility purposes only.


+MS Modulation select :

The +MS= command may be used to set the line speed for V.34 modems.

The command selects the modulation, enables or disables automode, and optionally specifies the
lowest and highest connection rates. The command format to select a line speed is:

AT+MS=[modulation],[automode],[min. speed],[max. speed] <Return>

To view the currently selected parameters type AT+MS? <Return>

To view the supported options for each parameter type AT+MS=? <Return>

The following sections define the parameters and accepted options for the +MS= command.

Modulation selection
A decimal number which specifies the preferred modulation (if automode is enabled) or the fixed
modulation (if automode is disabled) used in a connection.

0
= V.21 (300 bps)
1
= V.22 (1200 bps)
2
= V.22bis (1200 or 2400 bps)
3
= V.23 (1200/75 or 75/1200 bps)
9
= V.32 (4800 or 9600 bps)
10
= V.32bis (4800, 7200, 9600, 12000 or 14400 bps)
11
= V.34 (2400, 4800, 7200, 9600, 12000, 14400, 16800, 19200, 21600, 24000, 26400,
28800, 31200 or 33600 bps)
12
= V.90 (28000, 29333, 30667, 33333, 34667, 37333, 38667, 41333, 42667, 45333,
46667, 49333, 50667, 53333, 54667, 56000 bps) Default setting (V.90)
56
= K56flex (56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000, 40000, 38000,
36000, 34000, 32000). Default setting (K56flex)
64
= Bell 103 (300 bps)
69
= Bell 212 (1200 bps)

Automode
Automatic line speed selection or "automode" is a feature that lets the modem automatically determine
the type of incoming carrier signal. It operates in both dialling and answering modes when the modem
is attempting to establish a connection. This parameter of the +MS command is used to either enable
or disable automode as follows:

0
= automode disabled, fixed modulation.
1
= automode enabled. This is the default setting.

To create a fixed mode of operation set the minimum and maximum line speeds to be the same. For
example, to set the modem for V.32bis 12000 bps fixed mode, type:

AT+MS = 9,0,12000,12000 <Return>

Minimum and maximum line speeds
You use these two parameters to specify the lowest and highest line speeds at which the modem may
establish a connection. The number you enter at these two parameters reflects the bps rate, i.e. 14400
sets a rate of 14400 bps.

Setting the minimum and maximum line speed may constrain the range of modulations available, even
with automode enabled.

The default option for minimum speed is 300 (i.e. 300 bps)

The default option for maximum speed is 56000 (i.e. 56000 bps)

Example
AT+MS = 11,1,1200,24000 <Return>

selects V.34 as the preferred modulation with automode enabled. The minimum permitted line speed
is 1200 bps and the maximum is 24000 bps. Parameters that are not entered in the command line, by
either typing the comma only or <Return>, remain at their current setting (not necessarily the default
setting).

WhiteWashMan

N Automode detection :
Options : N0, N1
Default : N1

The N command is linked with register S37 to determine how the modem reacts when automode
detection is disabled.

N0
disables automode detection.
N1
enables automode detection.


\N Error correction mode select :
Options : \N0, \N1, \N2, \N3, \N4, \N5
Default : \N3

The \N command sets the preferred error correction mode. See the chapter Error correction and data
compression for more information.

\N0
disables error correction. Speed buffering is enabled.
\N1
enables direct mode. Both error correction and speed buffering are disabled. ~#
\N2
enables reliable mode. This command should be used when an error corrected connection must be
established.
\N3
enables auto reliable mode. If an error corrected connection cannot be established the modem falls
back to a non-error corrected correction.
\N4
enables a V.42 LAPM error corrected connection only.
\N5
enables an MNP error corrected connection only.

~# External modems only

O Return to on-line mode :

Issuing the O0 command after the escape sequence has been issued or an ON-to-OFF DTR transition
takes place (only with &D1 in operation) forces the modem to go back on-line and issue the
appropriate connect message. With no connection established the O0 command returns the ERROR
result message.

The O1 command forces the modem to go back on-line and initiate an equaliser retrain sequence in
V.22bis, V.32, V.32bis, V.FC and V.34 modes. When unacceptable bit error rates are experienced due
to loss of equalisation, the O1 can be issued to reduce those errors.


P Pulse dial :
By default the modem uses tone dialling when executing a dial string. However, entering the P
command will return the modem to the pulse dialling option. Alternatively, the P can be entered in the
dial string (e.g. ATD P 01234 567890). Pulse dialling will remain the default until tone dialling is
specifically selected.


&P Pulse make/break ratio :
This command is included for completeness and performs no function within the modem.


Q Quiet control :
Options : Q0, Q1
Default : Q0

The Q command enables or disables result codes and messages. By default the messages, such as
ERROR or BUSY, are displayed at the DTE. This is a useful indication as to the status of the modem
for users and software developers alike. It is sometimes desirable to disable these messages; for
example, when printing hard copy of incoming data so that they do not appear in the listing.

Q0
enables result codes/messages.
Q1
disables result codes/messages.


%Q Line signal quality :
A measure of the line quality can be performed when in on-line command mode. Issuing the %Q
command returns a three digit number. The lower the value, the better the receive quality. The values
returned by this command for different line speeds are not directly comparable. This value is
monitored by the modem and a retrain or rate change performed when necessary (if enabled by the
%E command).


&Q Asynchronous/synchronous mode selection :
Options : &Q0, &Q5, &Q6
Default : &Q5

For asynchronous operation the &Q setting is controlled by the \N command (error correction select).
It is therefore not necessary to directly set this command nor is it recommended. However, the &Q
command should be used to gain access to the synchronous operating modes of external modems.

&Q0
selects direct (non-speed buffered) asynchronous operation.
&Q5
selects the default configuration in which the modem attempts to establish an asynchronous error
corrected link. S36 may be used to determine the modem's behaviour if the V.42 LAPM
connection attempt fails.
&Q6
selects normal (speed buffered) asynchronous operation.

The &Q command setting has a direct influence on the &D command.


&R Select RTS/CTS state :
Options : &R0, &R1
Default : &R1

This command determines how the modem controls the CTS line.

&R0
In synchronous mode, CTS tracks the state of RTS; the RTS to CTS delay being defined by
register S26. In asynchronous mode, CTS acts as required by flow control except that it turns off
whilst a connection is being established (V.25bis handshake).
&R1
In synchronous mode, CTS is always on. In asynchronous mode, CTS only drops if required by
flow control.


S Display/set S register :

The S command can be used either to set or to view the value in the S register nominated or to set the
register specified as the currently selected register.

ATS10=255 <Return> sets register S10 with the value 255.

ATS3? <Return> displays the value in register S3.

ATS4 <Return> sets register S4 as the currently selected S register.

If an attempt to enter a value outside the range of the S register is made, the maximum or minimum
value is assumed and stored in the register.

Note: Some S registers are read only.


&S DSR (Data Set Ready) control :
Options : &S0, &S1
Default : &S1

DSR is the signal sent to the DTE indicating that the modem is ready to communicate. The &S0
command forces DSR high (ON) at all times. This may be required by certain communications
software.

&S1 makes DSR high (ON) when the modem is ready to communicate, i.e. after answer tone is
detected until the loss of carrier.


-SDR Select Distinctive Ring :
Options : 0 to 7
Default : 0

This command enables or disables detection and reporting of distinctive ring. The syntax is
AT-SDR=n, where n is a number from 0 to 7. One, two or three distinctive ring types can be
simultaneously enabled, depending upon the value of n (bit mapped). The detected ring type is
reported in the long form (verbose) of the result code by appending the ring type number to the end of
the RING message.

-SDR=0
Disables Distinctive Ring. Any valid ring detected is reported as RING (default).
-SDR=1
Enables Distinctive Ring Type 1.
-SDR=2
Enables Distinctive Ring Type 2.
-SDR=3
Enables Distinctive Ring Type 1 and 2.
-SDR=4
Enables Distinctive Ring Type 3.
-SDR=5
Enables Distinctive Ring Type 1 and 3.
-SDR=6
Enables Distinctive Ring Type 2 and 3.
-SDR=7
Enables Distinctive Ring Type 1, 2 and 3.

The ring types supported and the corresponding ring cadence detect criteria are:

Ring Type
Ring Cadence Detect Criteria
1
2.0 sec ON, 4.0 sec OFF.
2
0.8 sec ON, 0.4 sec OFF, 0.8 sec ON, 0.4 sec OFF.
3
0.4 sec ON, 0.2 sec OFF, 0.4 sec ON, 0.2 sec OFF.


T Tone dial :
Entering the T command selects tone dialling as the current dialling method until pulse dialling is
explicitly selected. Tone dialling is the modem default and adaptive tone dialling is enabled on the
first dialled call after a reset. See the chapter automatic dialling for full details.

Both pulse and tone dialling can be used in the same command line. For example, ATD T 9 W
P01234 567890 uses tone dialling to dial the 9, waits for the secondary dial tone from the exchange
and pulse dials the remainder of the dial string.


&T Modem self tests :
Options : &T0, &T1, &T3 to &T8
Default : &T4

The &T command selects one of five self tests used by the modem to pinpoint a failure in a
communications link. Test duration is determined by the contents of register S18. See chapter
Diagnostic and test facilities for more information.

&T0
terminates the current test in progress.
&T1
initiates a local analogue loopback test in accordance with ITU-T V.54 (loop 3).
&T3
initiates a remote digital loopback test of the local modem in accordance with ITU-T V.54 (loop
2).
&T4
grants a remote digital loopback request from the remote modem.
&T5
denies a remote digital loopback request from the remote modem.
&T6
initiates a remote digital loopback test in accordance with ITU-T V.54 (loop 2).
&T7
initiates a remote digital loopback test in accordance with ITU-T V.54 (loop 2) with self test.
&T8
initiates a local analogue loopback test in accordance with ITU-T V.54 (loop 3) with self test.


V Verbose/numeric result code selection :
Options : V0, V1
Default : V1

Result codes or messages returned to the DTE from the modem can be either numeric or verbose. In
the numeric form a number is used to indicate the result code. This is useful when the modem is under
software control as the codes can be more easily interpreted by a software program.

In the verbose or English form the messages appear as ERROR, NO CARRIER etc. and are more
user-friendly when the modem is under manual control.

V0
selects the numeric form.
V1
selects the verbose form.


&V View current configuration :
The &V command displays the modem's current configuration, user profiles 0 and 1 and the first four
stored telephone numbers.


&V1 Display Last Connection Statistics :
Displays the last connection statistics in the following format (shown with typical results):

TERMINATION REASON.......... LOCAL REQUEST

LAST TX data rate........... 31200 BPS

HIGHEST TX data rate........ 31200 BPS

LAST RX data rate........... 50000 BPS

HIGHEST RX data rate........ 50000 BPS

Error correction PROTOCOL... LAPM

Data COMPRESSION............ V42Bis

Line QUALITY................ 011

Receive LEVEL............... 012

Highest SPX Receive State... 68

Highest SPX Transmit State.. 67

EQM Sum Value............... 00A4

RBS Pattern detected........ 00

Data Rate Dropped in kbps... 00

Digital Pad Detected........ None


\Vn Single Line Connect Message Enable :
Options : \V0, \V1
Default : \V0

The single line connect message format can be enabled or disabled by the \Vn command as follows:

\V0
Connect messages are controlled by the command settings X, W, and S95.
\V1
Connect messages are displayed in the single line format described below subject to the
command settings V (Verbose) and Q (Quiet). In Non-Verbose mode (V0), single line
connect messages are disabled and a single numeric result code is generated for
CONNECT DTE.

When single line connect messages are enabled, there are no carrier, protocol, or compression
messages apart from the fields described below. The single line connect message format is:

CONNECT <DTE Speed></Modulation></Protocol></Compression></Line Speed>/<Voice and
Data>


W Connect message control :
Options : W0, W1, W2
Default : W2

Connect message control is used to select the type of speed information attached to CONNECT
messages. In addition, information on the type of error correction in use can be enabled with this
command.

W0
selects DTE speed.
W1
selects line speed, error correction protocol and DTE speed in that order.
W2
selects line speed.

Register S95 can also be used to influence CONNECT messages. For example, details regarding the
type of data compression in use may be obtained by setting S95 = 32.


&W Write User defaults :

The &W command writes the current S register and AT command settings to the non-volatile memory
of the modem as User profile defaults. In effect, you customise your modem with the current
configuration information.

&W0
writes the current configuration to User profile 0.
&W1
writes the current configuration to User profile 1.

Either profile can be selected by issuing the appropriate Z command. This remains the active profile
until such a time as it is changed.

Also, either profile can be selected as the power up profile by issuing the appropriate &Y command.
Again, this remains the active profile until changed.

Both profiles can be overwritten at any time by re-issuing the &W command. To return the factory
default values as a User profile the &F&Wn command should be used (when n is 0 or 1 as
appropriate).


X Extended result code selection :
Options : X0, X1, X2, X3, X4
Default : X4

The X command is used to determine the precise way that the modem behaves during dialling and
connection to a remote service and which set of result codes are used. Further control over the actual
message output during connection may be obtained by use of register S95.

X0
The modem attempts to dial regardless of the presence or absence of a dial tone after the period
specified by register S6. After dialling, the modem:

i) returns a CONNECT message having established a connection; or

ii) returns the NO CARRIER message if the connection could not be made (line busy or no dial
tone). This mode of operation is known as blind dialling.
X1
provides the same facility as X0 above but, additionally, the CONNECT message is enhanced with
the connection speed.
X2
behaves as for X1 but only dials when a dial tone is detected. If dial tone is not detected within
five seconds the NO DIALTONE message is returned. Engaged signals are not recognised.
X3
behaves as for X1 but detects engaged or number unobtainable signals and returns the BUSY
message. Dial tone detection is disabled. This option is designed mainly for use in countries which
have dial tones not recognised by the modem and would consequently prohibit its use if no X3
option was available.
X4
enables all messages and provides both dial tone and engaged signal detection.


&X Select synchronous clock source :
Options : &X0, &X1, &X2
Default : &X0

In asynchronous mode, the transmit and receive clocks are turned off. In synchronous mode, both
clocks are turned on at a frequency of 1200 Hz or higher, corresponding to the line speed in use.
Synchronous mode may only be used with external modems.

&X0
selects internal timing. The modem generates the transmit clock signal and applies it to the
TXCLK output (pin 15) of the RS232 serial interface.
&X1
selects external timing. The local DTE generates the transmit clock signal and applies it to the
TXCLK input (pin 24) of the RS232 serial interface. The modem applies this signal to the
TXCLK output (pin 15) of the RS232 serial interface.
&X2
selects slave receive timing. The modem derives the transmit clock signal from the incoming
receive carrier and applies it to the TXCLK output (pin 15) of the RS232 serial interface.


Y Long space disconnect :
Options : Y0, Y1
Default : Y0

The Y1 command enables the long space disconnect facility in the modem. This means that if a
continuous break of equal to or greater than 1.6 seconds from the remote modem is experienced, the
modem terminates the connection. In addition, the modem sends a 4 second long space prior to going
on hook in response to the H0 command (or DTR ON-to-OFF transition). Y0 disables the facility and
is the default setting.


&Y Select power up User profile :
Options : &Y0, &Y1
Default : &Y0

If User profiles are programmed to memory using the &W command, the &Y command can be used to
select either profile as the next power up (not Z command) default.

&Y0
selects User profile 0.
&Y1
selects User profile 1.


Z Reset modem to User profile :

The Z command conducts a modem software reset that restores the User profile selected.

Z0
performs a software reset to User profile 0.
Z1
performs a software reset to User profile 1.

If no User profiles exist the Z command restores the factory default settings.


&Z Store telephone number :

Used to add a telephone number in one of the twenty number stores available. Each entry may be up
to 40 characters in length. Example: AT&Zn=x (where n is 0-19 and x is the telephone number).

Important note: Be very careful when entering numbers to ensure the correct number is stored.
Repeated dialling of an incorrect number could be very inconvenient to the owner of the number!


? Read selected S register :
This command reads and displays the currently selected S register. The currently selected S register is
chosen by using the Sn command (where n equals the number of the register).


=x Write to selected S register :
Options : All S registers
Default : None

Writes the value x to the currently selected S register. An S register can be selected by using the Sn
command (where n equals the number of the register).

WhiteWashMan

i hope you find this very useful
just flash the thing. dont bother with the v.90 upgrade its crap and bobs yer uncle

SickBoy

AT+MS=12,1,28800,36000 worked really well for me when I had a pace. I found that if I connected any higher than 36kbps I would get good pings but really bad lag trips every 2 mins, so I desided to go with a slightly higher ping (10ms higher) and an almost rock solid connection. Hope this helps you.


Jimmy...

[This message has been edited by SickBoy (edited 04-09-99).]