Telit Wireless Solutions HE863 Series Installation manual

HE863 family AT commands reference
guide
80377ST10083a Rev.6 – 2012-11-12

HE863 family AT commands reference guide
80377ST10083a Rev.6 – 2012-11-12
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APPLICABILITY TABLE
PRODUCT
HE863-EUD
HE863-EUG
HE863-EUR
HE863-NAD
HE863-NAG
HE863-NAR
HE863-AUD
HE863-AUG
HE863-AUR
SW Version
11.00.XY2

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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Notice
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from
use of the information obtained herein. The information in this document has been carefully
checked and is believed to be entirely reliable. However, no responsibility is assumed for
inaccuracies or omissions. Telit reserves the right to make changes to any products described
herein and reserves the right to revise this document and to make changes from time to time
in content hereof with no obligation to notify any person of revisions or changes. Telit does
not assume any liability arising out of the application or use of any product, software, or
circuit described herein; neither does it convey license under its patent rights or the rights of
others.
It is possible that this publication may contain references to, or information about Telit
products (machines and programs), programming, or services that are not announced in your
country. Such references or information must not be construed to mean that Telit intends to
announce such Telit products, programming, or services in your country.
Copyrights
This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the
exclusive right to copy, reproduce in any form, distribute and make derivative works of the
copyrighted material. Accordingly, any copyrighted material of Telit and its licensors
contained herein or in the Telit products described in this instruction manual may not be
copied, reproduced, distributed, merged or modified in any manner without the express
written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed
to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Telit, as arises by operation of law in the sale of a
product.
Computer Software Copyrights
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer
programs, including the exclusive right to copy or reproduce in any form the copyrighted
computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW
computer programs contained in the Telit products described in this instruction manual may
not be copied (reverse engineered) or reproduced in any manner without the express written
permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products
shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any
license under the copyrights, patents or patent applications of Telit or other 3rd Party supplied
SW, except for the normal non-exclusive, royalty free license to use that arises by operation
of law in the sale of a product.

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Usage and Disclosure Restrictions
License Agreements
The software described in this document is the property of Telit and its licensors. It is
furnished by express license agreement only and may be used only in accordance with the
terms of such an agreement.
Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form or by any means, without prior written permission of Telit
High Risk Materials
Components, units, or third-party products used in the product described herein are NOT
fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the operation
of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic
Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s)
specifically disclaim any expressed or implied warranty of fitness for such High Risk
Activities.
Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or
service names are the property of their respective owners.
Copyright © Telit Communications S.p.A. 2011.

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Contents
1. Introduction ..........................................................................................................6
1.1. Scope ........................................................................................................................ 6
1.2. Audience ................................................................................................................... 6
1.3. Contact Information, Support................................................................................... 6
1.4. Document Organization............................................................................................ 7
1.5. Text Conventions ...................................................................................................... 7
1.6. Related Documents .................................................................................................. 7
2. HE863 family Product Specification ......................................................................8
3. AT COMMANDS ...................................................................................................10
3.1. Definitions............................................................................................................... 11
3.2. AT Command Syntax .............................................................................................. 12
3.2.1. String Type Parameters ...............................................................................................13
3.2.2. Command Lines............................................................................................................13
3.2.3. Information Responses And Result Codes ..................................................................18
3.2.4. Command Response Time-Out ....................................................................................19
3.2.5. Command Issuing Timing.............................................................................................21
3.3. Storage ................................................................................................................... 22
3.3.1. Factory Profile And User Profiles ................................................................................22
3.4. AT Commands Availability Table............................................................................ 24
3.5. AT Commands References..................................................................................... 29
3.5.1. Command Line General Format ..................................................................................29
3.5.2. Hayes Compliant AT Commands..................................................................................30
3.5.3. 3GPP TS 27.007 AT Commands....................................................................................46
3.5.4. 3GPP TS 27.005 AT Commands for SMS and CBS.....................................................106
3.5.5. Custom AT Commands...............................................................................................132
4. ACRONYMS AND ABBREVIATIONS ....................................................................227
5. Document History .............................................................................................229

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1. Introduction
1.1. Scope
This document is aimed in providing an detailed specification and a comprehensive listing as a
reference for the whole set of AT command.
1.2. Audience
Readers of this document should be familiar with Telit modules and their ease of controlling
by means of AT Commands.
1.3. Contact Information, Support
For general contact, technical support, to report documentation errors and to order manuals,
contact Telit Technical Support Center (TTSC) at:
[email protected]
[email protected]
[email protected]
[email protected]
Alternatively, use:
http://www.telit.com/en/products/technical-support-center/contact.php
For detailed information about where you can buy the Telit modules or for recommendations
on accessories and components visit:
http://www.telit.com
To register for product news and announcements or for product questions contact Telit
Technical Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Keep us informed of your comments and
suggestions for improvements.
Telit appreciates feedback from the users of our information.

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1.4. Document Organization
This document contains the following chapters:
Chapter 1: “Introduction” provides a scope for this document, target audience, contact and
support information, and text conventions.
Chapter 2: “Overview” about the aim of this document and implementation suggestions.
Chapter 3: “AT Commands” The core of this reference guide.
Chapter 4: “ACRONYMS AND ABBREVIATIONS”
Chapter 5: “Document History”
1.5. Text Conventions
Danger – This information MUST be followed or catastrophic equipment failure or bodily
injury may occur.
Caution or Warning – Alerts the user to important points about integrating the module, if
these points are not followed, the module and end user equipment may fail or malfunction.
Tip or Information – Provides advice and suggestions that may be useful when
integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
1.6. Related Documents
3gpp TS 27.005 specification and rules
3gpp TS 27.007 specification and rules
Hayes standard AT command set
Rockwell RC56D & RC336D
1vv0300893 HE863 family software user guide

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2. HE863 family Product Specification
ITEM FEATURE
HE863-EUD HE863-EUR HE863-EUG HE863-NAD HE863-NAR HE863-NAG
Air
interface
▪Dual-band
UMTS/HSPA
2100/900
▪Quad-Band
GSM 850/900
/1800/1900
▪Data only
▪Dual-band
UMTS/HSPA
2100/900
▪Quad-Band
GSM 850/900
/1800/1900
▪Dual-band
UMTS/HSPA
2100/900
▪Quad-Band
GSM 850/900
/1800/1900
▪Standalone
GPS
▪Dual-band
UMTS/HSPA
1900/850
▪Quad-Band
GSM 850/900
/1800/1900
▪Data only
▪Dual-band
UMTS/HSPA
1900/850
▪Quad-Band
GSM 850/900
/1800/1900
▪Dual-band
UMTS/HSPA
1900/850
▪Quad-Band
GSM 850/900
/1800/1900
▪Standalone
GPS
Size 41.4(L)X31.4(W)X2.9(T)
Data Service
▪HSPA UL 5.8Mbps, DL 7.2Mbps
▪EDGE UL 118kbps, DL 236.8Kbps,
▪GPRS UL 42.8kbps, DL 85.6 Kbps
Interface
▪189 Balls Grid Array interface
▪22 general I/O ports maximum including multi-functional I/Os
▪Status LED output
▪3 A/D converters
▪1 D/A converter (PWM output)
▪Full RS232 CMOS UART: baud rate up to 6Mbps
▪Reserved two wires CMOS UART for debugging
▪USB 2.0, baud rate up to 480Mbps
▪1.8V/3V SIM interface
Antenna External Antenna
Audio
▪2 pairs of analog audio interface (Balanced type)
▪PCM interface for Digital audio
(Audio only for HE863-EUG/EUR/NAG/NAR/AUG)
Message SMS (MO/MT)
SIM Card Support 1.8 and 3V UICC
ITEM FEATURE
HE863-AUD HE863-AUR HE863-AUG

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Air
interface
▪Dual-band
UMTS/HSPA
2100/850
▪Quad-Band
GSM 850/900
/1800/1900
▪Data only
▪Dual-band
UMTS/HSPA
2100/850
▪Quad-Band
GSM 850/900
/1800/1900
Dual-band
UMTS/HSPA
2100/850
▪Quad-Band
GSM 850/900
/1800/1900
▪Standalone
GPS
Size 41.4(L)X31.4(W)X2.9(T)
Data Service
▪HSPA UL 5.8Mbps, DL 7.2Mbps
▪EDGE UL 118kbps, DL 236.8Kbps,
▪GPRS UL 42.8kbps, DL 85.6 Kbps
Interface
▪189 Balls Grid Array interface
▪22 general I/O ports maximum including multi-functional I/Os
▪Status LED output
▪3 A/D converters
▪1 D/A converter (PWM output)
▪Full RS232 CMOS UART: baud rate up to 6Mbps
▪Reserved two wires CMOS UART for debugging
▪USB 2.0, baud rate up to 480Mbps
▪1.8V/3V SIM interface
Antenna External Antenna
Audio
▪2 pairs of analog audio interface (Balanced type)
▪PCM interface for Digital audio
(Audio only for HE863-EUG/EUR/NAG/NAR/AUG)
Message SMS (MO/MT)
SIM Card Support 1.8 and 3V UICC
NOTE: In the following sections, HE863 family refers to all HE863 products mentioned in
the table above. Whenever a command and/or feature is referred to a specific model, it is
clearly highlighted

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3. AT COMMANDS
The Telit wireless module family can be driven via the serial interface using the standard AT
commands1. The Telit wireless module family is compliant with:
1. Hayes standard AT command set, in order to maintain the compatibility with existing SW
programs.
2. 3gpp TS 27.005 specific AT command (Use of Data Terminal Equipment - Data Circuit
terminating Equipment (DTE-DCE) interface for Short Message Service (SMS) and Cell
Broadcast Service (CBS))
3. 3gpp TS 27.007 specific AT command (AT command set for User Equipment (UE))
Moreover Telit wireless module family supports also Telit proprietary AT commands for special
purposes.
In the following is described how to use the AT commands with the Telit wireless module family.
NOTE: AT commands described in this document are compatible with Telit’s unified AT
command interface (SELINT=2).
1The AT is an ATTENTION command and is used as a prefix to other parameters in a string. The AT
command combined with other parameters can be set up in the communications package or typed in manually
as a command line instruction.command combined with other parameters can be set up in the communications
package or typed in manually as a command line instruction.

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3.1. Definitions
The following syntactical definitions apply:
<CR> Carriage return character, is the command line and result code terminator character,
which value, in decimal ASCII between 0 and 255,is specified within parameter S3.
The default value is 13.
<LF> Linefeed character, is the character recognised as line feed character. Its value, in
decimal ASCII between 0 and 255, is specified within parameter S4. The default
value is 10. The line feed character is output after carriage return character if verbose
result codes are used (V1option used ) otherwise, if numeric format result codes are
used (V0option used) it will not appear in the result codes.
<...> Name enclosed in angle brackets is a syntactical element. They do not appear in the
command line.
[...] Optional subparameter of a command or an optional part of TA information response
is enclosed in square brackets. Brackets themselves do not appear in the command
line. When subparameter is not given in AT commands which have a Read command,
new value equals to its previous value. In AT commands which do not store the
values of any of their subparameters, and so have not a Read command, which are
called action type commands, action should be done on the basis of the recommended
default setting of the subparameter.

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3.2. AT Command Syntax
The syntax rules followed by Telit implementation of either Hayes AT commands and
GSM/WCDMA commands are very similar to those of standard basic and extended AT
commands.
There are two types of extended command:
-Parameter type commands. This type of commands may be “set” (to store a value or
values for later use), “read” (to determine the current value or values stored), or “tested”
(to determine ranges of values supported). Each of them has a test command (trailing =?)
to give information about the type of its subparameters; they also have a Read command
(trailing ?) to check the current values of subparameters.
-Action type commands. This type of command may be “executed” or “tested”.
“executed“ to invoke a particular function of the equipment, which generally involves
more than the simple storage of a value for later use
“tested” to determine:
whether or not the equipment implements the Action Command (in this case issuing
the correspondent Test command - trailing =? - returns the OK result code), and, if
subparameters are associated with the action, the ranges of subparameters values that
are supported.
Action commands don’t store the values of any of their possible subparameters.
Moreover:
The response to the Test Command (trailing =?) may be changed in the future by Telit to
allow the description of new values/functionalities
If all the subparameters of a parameter type command +CMD (or #CMD or $CMD) are
optional, issuing AT+CMD=<CR> (or AT#CMD=<CR> or AT$CMD=<CR>) causes the
OK result code to be returned and the previous values of the omitted subparameters to be
retained.

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3.2.1. String Type Parameters
A string, either enclosed between quotes or not, is considered to be a valid string type parameter
input. According to V25.ter space characters are ignored on the command line and may be used
freely for formatting purposes, unless they are embedded in numeric or quoted string constants;
therefore a string containing a space character has to be enclosed between quotes to be considered
a valid string type parameter (e.g. typing AT+COPS=1,0,”A1” is the same as typing
AT+COPS=1,0,A1; typing AT+COPS=1,0,”A BB” is different from typing AT+COPS=1,0,A
BB).
A small set of commands requires always writing the input string parameters within quotes: this is
explicitly reported in the specific descriptions.
3.2.2. Command Lines
A command line is made up of three elements: the prefix, the body and the termination
character.
The command line prefix consists of the characters “AT” or “at”, or, to repeat the execution of
the previous command line, the characters “A/” or “a/”.
The termination character may be selected by a user option (parameter S3), the default being
<CR>.
The basic structures of the command line are:
ATCMD1<CR> where AT is the command line prefix, CMD1 is the body of a basic
command (nb: the name of the command never begins with the character “+”) and <CR>
is the command line terminator character
ATCMD2=10<CR> where 10 is a subparameter
AT+CMD1;+CMD2=, ,10<CR> These are two examples of extended commands (nb:
the name of the command always begins with the character “+”2). They are delimited with
semicolon. In the second command the subparameter is omitted.
+CMD1?<CR> This is a Read command for checking current subparameter values
+CMD1=?<CR> This is a test command for checking possible subparameter values
These commands might be performed in a single command line as shown below:
ATCMD1 CMD2=10+CMD1;+CMD2=, ,10;+CMD1?;+CMD1=?<CR>
anyway it is always preferable to separate into different command lines the basic commands
and the extended commands; furthermore it is suggested to avoid placing several action
2The set of proprietary AT commands differentiates from the standard one because the name of
each of them begins with either “@”, “#”, “$” or “*”. Proprietary AT commands follow the same
syntax rules as extended commands

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commands in the same command line, because if one of them fails, then an error message is
received but it is not possible to argue which one of them has failed the execution.
If command V1 is enabled (verbose responses codes) and all commands in a command line
has been performed successfully, result code <CR><LF>OK<CR><LF> is sent from the TA
to the TE, if subparameter values of a command are not accepted by the TA or command
itself is invalid, or command cannot be performed for some reason, result code
<CR><LF>ERROR<CR><LF> is sent and no subsequent commands in the command line
are processed.
If command V0 is enabled (numeric responses codes), and all commands in a command line
has been performed successfully, result code 0<CR> is sent from the TA to the TE, if sub-
parameter values of a command are not accepted by the TA or command itself is invalid, or
command cannot be performed for some reason, result code 4<CR> and no subsequent
commands in the command line are processed.
In case of errors depending on ME operation, ERROR (or 4) response may be replaced by
+CME ERROR: <err> or +CMS ERROR: <err>.
NOTE: The command line buffer accepts a maximum of 80 characters. If this number is
exceeded none of the commands will be executed and TA returns ERROR.

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3.2.2.1. ME Error Result Code - +CME ERROR: <err>
This is NOT a command, it is the error response to +Cxxx 3gpp TS 27.007 commands.
Syntax: +CME ERROR: <err>
Parameter: <err> - error code can be either numeric or verbose (see +CMEE).The
possible values of <err> are reported in the table:
Numeric Format Verbose Format
General errors:
0
p
hone failure
1
N
o connection to
p
hone
2
p
hone-ada
p
tor link reserve
d
3 o
p
eration not allowe
d
4 o
p
eration not su
pp
or
t
e
d
5 PH-SIM PIN re
q
uire
d
6 PH-FSIM PIN re
q
uire
d
7 PH-FSIM PUK re
q
uire
d
10 SIM not inserte
d
11 SIM PIN re
q
uire
d
12 SIM PUK re
q
uire
d
13 SIM failure
14 SIM bus
y
15 SIM wron
g
16 incorrect
p
asswor
d
17 SIM PIN2 re
q
uire
d
18 SIM PUK2 re
q
uire
d
20 memor
y
full
21 invalid index
22 not foun
d
23 memor
y
failure
24 text strin
g
too lon
g
25 invalid characters in text strin
g
26 dial strin
g
too lon
g
27 invalid characters in dial strin
g
30 no network service
31 network time-ou
t
32 network not allowed - emer
g
enc
y
calls onl
y
40 network
p
ersonalization PIN re
q
uire
d
41 network
p
ersonalization PUK re
q
uire
d
42 network subset
p
ersonalization PIN re
q
uire
d
43 network subset
p
ersonalization PUK re
q
uire
d
44 service
p
rovider
p
ersonalization PIN re
q
uire
d
45 service
p
rovider
p
ersonalization PUK re
q
uire
d
46 cor
p
orate
p
ersonalization PIN re
q
uire
d
47 cor
p
orate
p
ersonalization PUK re
q
uire
d
48 hidden key required (NOTE: This key is required when
accessin
g
hidden
p
honebook entries.
)
49 EAP method not su
pp
orte
d
50 Incorrect
p
arameters
General
p
ur
p
ose error:
100 unknown
GPRS related errors to a failure to
p
erform an Attach:
103 Ille
g
al MS
(
#3
)
*

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Numeric Format Verbose Format
106 Ille
g
al ME
(
#6
)
*
107 GPRS service not allowed
(
#7
)
*
111 PLMN not allowed
(
#11
)
*
112 Location area not allowed
(
#12
)
*
113 Roamin
g
not allowed in this location area
(
#13
)
*
GPRS related errors to a failure to Activate a Context and others:
132 service o
p
tion not su
pp
orted
(
#32
)
*
133 re
q
uested service o
p
tion not subscribed
(
#33
)
*
134 service o
p
tion tem
p
oraril
y
out of order
(
#34
)
*
148 uns
p
ecified GPRS erro
r
149 PDP authentication failure
150 invalid mobile class
Eas
y
GPRS® related errors
550
g
eneric undocumented erro
r
551 wron
g
state
552 wron
g
mode
553 context alread
y
activate
d
554 stack alread
y
active
555 activation faile
d
556 context not o
p
ene
d
557 cannot setu
p
socke
t
558 cannot resolve DN
559 time-out in o
p
enin
g
socke
t
560 cannot o
p
en socke
t
561 remote disconnected or time-ou
t
562 connection faile
d
563 tx erro
r
564 alread
y
listenin
g
Network surve
y
errors:
657
N
etwork surve
y
error
(
No Carrier
)
*
658
N
etwork surve
y
error
(
Bus
y)
*
659
N
etwork surve
y
error
(
Wron
g
re
q
uest
)
*
660
N
etwork surve
y
error
(
Aborted
)
*
*(Values in parentheses are 3gpp TS 24.008 cause codes)

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3.2.2.2. Message Service Failure Result Code - +CMS ERROR: <err>
This is NOT a command; it is the error response to +Cxxx 3gpp TS 27.005
commands
Syntax: +CMS ERROR: <err>
Parameter: <err> - numeric error code. The <err> values are reported in the table:
Numeric Format Meaning
0...127 3gpp TS 24.011 Annex E-2 values
128...255 3gpp TS 23.040 sub clause 9.2.3.22 values
300 ME failure
301 SMS service of ME reserved
302 operation not allowed
303 operation not supported
304 invalid PDU mode parameter
305 invalid text mode parameter
310 SIM not inserted
311 SIM PIN required
312 PH-SIM PIN required
313 SIM failure
314 SIM busy
315 SIM wrong
316 SIM PUK required
317 SIM PIN2 required
318 SIM PUK2 required
320 memory failure
321 invalid memory index
322 memory full
330 SMSC address unknown
331 no network service
332 network time-out
340 no +CNMA acknowledgement expected
500 unknown error

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3.2.3. Information Responses And Result Codes
The TA response, in case of verbose response format enabled, for the previous examples
command line could be as shown below:
Information response to +CMD1? <CR><LF>+CMD1:2,1,10<CR><LF>
Information response to +CMD1=? <CR><LF>+CMD1(0-2),(0,1),(0-15)<CR><LF>
Final result code <CR><LF>OK<CR><LF>
Moreover there are other two types of result codes:
result codes that inform about progress of TA operation (e.g. connection
establishment CONNECT)
result codes that indicate occurrence of an event not directly associated with issuance
of a command from TE (e.g. ring indication RING).
Here the basic result codes according to ITU-T V25Ter recommendation
Result Codes
Numeric form Verbose form
0 OK
1 CONNECT
2 RING
3 NO CARRIER
4 ERROR
6 NO DIALTONE
7 BUSY
8 NO ANSWER

HE863 family AT commands reference guide
80377ST10083a Rev.6 – 2012-11-12
Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved. Page 19 of 229
3.2.4. Command Response Time-Out
Every command issued to the Telit modules returns a result response if response codes are
enabled (default). The time needed to process the given command and return the response
varies, depending on the command type. Commands that do not interact with the SIM or the
network, and involve only internal set up settings or readings, have an immediate response,
depending on SIM configuration(e.g., number of contacts stored in the phonebook, number of
stored SMS), or on the network the command may interact with.
In the table below are listed only the commands whose interaction with the SIM or the
network could lead to long response timings. When not otherwise specified, timing is referred
to set command.
For phonebook and SMS writing and reading related commands, timing is referred to
commands issued after phonebook sorting is completed.
For DTMF sending and dialing commands timing is referred to module registered on
network(“AT+CREG?” answer is “+CREG: 0,1” or “+CREG: 0,5”).
Command Estimated maximum time to get
response(Seconds)
+COPS 180 (test command)
+CLCK 180 (SS operation)
180 (FDN enabling/disabling)
+CPWD 180 (SS operation)
5 (PIN modification)
+CLIP 180 (read command)
+CLIR 180 (read command)
+CCFC 180
+CCWA 180
+CHLD 180
+CPIN 5
+CPBS 5 (FDN enabling/disabling)
+CPBR 5 (single reading)
30 (complete reading of a 500 records full
phonebook with the baudrate of serial line more
than 115200 bps )
+CPBF 30 (string present in a 500 records full phonebook
with the baudrate of serial line more than 115200
bps)
5 (string not present)
+CPBW 5
+CACM 5

HE863 family AT commands reference guide
80377ST10083a Rev.6 – 2012-11-12
Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved. Page 20 of 229
+CAMM 5
+CPUC 5
+VTS 180 (transmission of full “1234567890*#ABCD”
string with no delay between tones, default
duration)
+CSCA 5 (read and set commands)
+CSAS 5
+CRES 5
+CMGS 180 after CTRL-Z; 1 to get ‘>’ prompt
+CMSS 180 after CTRL-Z; 1 to get ‘>’ prompt
+CMGW 5 after CTRL-Z; 1 to get ‘>’ prompt
+CMGD 5 (single SMS cancellation)
25 (cancellation of 50 SMS)
+CNMA 180 after CTRL-Z; 1 to get ‘>’ prompt
+CMGR 5
+CMGL 7
+CGACT 180
+CGATT 180
D65 (voice call)
Timeout set with ATS7 (data call)
A65 (voice call)
Timeout set with ATS7 (data call)
H35
+CHUP 35
+COPN 45
+CRSM 5
#TONE 5 (if no duration specified)
#GPRS 180
#SKTD 140 (DNS resolution + timeout set with
AT#SKTCT)
#SKTOP 290 ( context activation + DNS resolution + timeout
set with AT#SKTCT)
#QDNS 180
#FTPOPEN 500 (timeout set with AT#FTPTO, in case no
response is received from server)