Siemens S35i User manual

Modem Command Set Reference Manual

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Manual Reference

Modem Commands

for the SIEMENS Mobile Phone

S35i, C35i, M35i

Modem Command Set Reference Manual

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The command descriptions or example sequences in this document imply no liability or warranty in any

way. The author therefore will take no responsibility and will accept no liability which results of using the

content of this document in any way.

any form or by any means (graphic, electronic, or mechanical, including photocopying, taping, or

information storage and retrieval systems) without written permission of the publisher.

Revisions Overview

Date Version Name Description of revision

23-05-2000 1.0 R.Sc. File created

Table of Contents

1. AT Command Set ...................................................................................................................3

Modem Command Set Reference Manual

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1. AT Command Set

A command entered at the user port generally starts with a command prefix consisting of the characters ‘AT’.

The remainder of the line is interpreted as a sequence of the commands described below. The commands are not

case-sensitive. More than one command may be given on a single line.

With all commands in Table 1that take a numeric argument this argument may be omitted and defaults to 0.

The ATD command is special: all characters in the same line (or up to a semicolon) are considered part of the

number to dial.

The prefix ‘A/’ repeats the preceding command.

Command Description

A/ Repeat the last command string.

+++ Escape sequence, switches to command mode during call

AT Prefix for all other commands

Command Function (default values in

bold type ) Implementation comments Reference

AAnswer a call V.25 ter

B[n]Sets the bearer service for

data connections (cf.

+CBST).

Parameters:

DNT

72400 bps, asynchronous,

V.22bis

11 4800 bps, asynchronous,

V.32

13 9600 bps, asynchronous,

V.32

25 2400 bps, asynchronous,

V.110 ISDN

27 4800 bps, asynchronous,

V.110 ISDN

29 9600 bps asynchronous,

V.110 ISDN

99 Call: Automatic selection

of the operation mode

in accordance with the

baud rate of the PC.

Answer: All calls are

accepted.

Dx[;] Dial phone number x.

Some prefixes not defined in

V.25 ter are recognised:

V.25 ter, GSM

07.07

IISDN: This phone call

will be made as a ‘UDI’

Modem Command Set Reference Manual

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Command Function (default values in

bold type ) Implementation comments Reference

call. An ISDN connection

to a V.110 terminal

adapter will be

established. The data

transmission speed is the

same as for an ‘analog’

call (2400 / 4800 / 9600

/ 14400 bps).

PPlus: same as ‘+’

character.

E[n]Command echo V.25 ter

H[n]Disconnect existing link V.25 ter

I[n]Display product code

0‘032’

1‘032’

2‘OK’, (check firmware

checksum)

8Display supported

operation modes (cf.

ATB)

9identification of modem

and mobile phone

L[n]Monitor speaker loudness No action V.25 ter

M[n]Monitor speaker mode No action V.25 ter

O[0] Switch back to transparent

mode after +++ interruption V.25 ter

Q[0] Display responses or

messages V.25 ter

Q1 Don't display responses or

messages V.25 ter

Sn=xWrite value xto S register nV.25 ter

Sn?Display value of S register nV.25 ter

V[0] Responses in numeric format V.25 ter

V1 Responses in text format V.25 ter

XReport link with

CONNECT only ignore

busy signal

V.25 ter

X1 Report link with

CONNECT plus baud rate,

ignore busy signal

V.25 ter

Modem Command Set Reference Manual

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Command Function (default values in

bold type ) Implementation comments Reference

X2 As ATX1 V.25 ter

X3 As ATX1, but report BUSY V.25 ter

X4 As ATX3 V.25 ter

ZReset to default configuration V.25 ter

&C[n] Circuit 109 (Received line

signal detector / DCD)

behaviour

V.25 ter

&C0 DCD always ON

&C1 DCD ON if carrier

detected

&D[n] Circuit 108 (Data terminal

ready / DTR) behaviour V.25 ter

&D0 DTR ignored

&D1 On DTR ON to OFF: go to

online command mode,

don't disconnect

&D2 On DTR ON to OFF:

disconnect go to

command mode.

Automatic answer is

disabled while DTR OFF.

&F Load factory defaults V.25 ter

&V Display current configuration

profile customisable

&WnNo action

&YnNo action

&Zn=xNo action

\A No action

\A1 No action

\A2 No action

\A3 No action

\C No action

\C1 No action

\G No action

\G1 No action

\N No action

\N2 No action

\N3 No action

\N4 No action

\N5 No action

Modem Command Set Reference Manual

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Command Function (default values in

bold type ) Implementation comments Reference

\N6 No action

\Q[n] Local flow control selection

(DTE ↔DCE) customisable

\Q0 Disable flow control

\Q1 XON-XOFF software flow

control

\Q2 CTS only flow control

\Q3 RTS/CTS flow control

\S Display monitored variables DNT

\V[n} n = 0 No /REL or /RLP

appendix with the ‘connect’

message

n = 1 /REL or /RLP

appendix with the ‘connect’

message

DNT

%An No action

%C No action

%C1 No action

%Dn No action

^S... Routed to MS See gsatxsie.c.DNT, Siemens

Table 1: Basic AT Commands

Modem Command Set Reference Manual

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The commands in Table 2are used to configure the modem .All other AT commands

specified by leading +C are descripted in the AT Command Set Reference Manual.

Command Function, defaults Implementation comments Reference

+CBST 7,0,1 (9600 bps) GSM07.07

+CRLP 61,61,58,6 GSM07.07

+CR 0GSM07.07

Table 2: Local AT+C (Cellular) Commands

S-Register Function (default values in bold type)

S 0 The number of rings before the Gipsy Soft answers the call (Default: 0, does not answer)

S 3 Command termination character and first character of response trailer (CR)

S 4 Second character of response trailer (LF)

S 6 Editing character; erases the previous character (BS)

S 6 Escape character

S 7 Wait for carrier after dialling (in seconds). (Default: 60)

S 8 + S 9 No Action

S 10 Delay between Lost Carrier and Hang up in 0.1 sec. (Default 2 = 200ms)

S 11 .. S17 No Action

S 18 Bit

0 0 no GSM exit cause 1with GSM exit cause

1 0 no SMS Indication ‘+C...’ 1with incoming SMS Indication ‘+C..’

S 19 ... S99 No Action

Table 3: S-Registers

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