AT Command Reference Guide for EDGE Wireless ... - wless.ru

Chapter 10 – Internet Service Commands
Using Internet Service AT commands on several interfaces (ASC0, ASC1, USB or Multiplex mode on ASC0):
• A connection profile can be created on one interface and then viewed or changed on all other interfaces.
• A service profile can be used only on one interface at a time:
∗ Changes to a service profile are allowed only on the same interface where it was created, trying to
change it on another interface is denied with “+CME ERROR: Invalid index”. If queried with the
read command AT^SISS the entire profile is returned on the interface where the service profile was
created, while on all other interfaces only the service type of the profile is stated.
∗ If a service profile is active (after opening it with AT^SISO) on one interface, any attempt to open or
close the same service profile on another interface is denied with “+CME ERROR: Operation
temporary not allowed”.
∗ To free a service profile for use on another interface, use the AT^SISS command and select
service type = “none”. This action deletes the entire profile and restores all parameters of the profile
to their initial power-up state (all values are empty). For example, to remove the service profile 3,
set AT^SISS=3,svrtype, none. After this, a new profile 3 can be created on any other interface.
Address Notation:
Server addresses must be provided as IP addresses in standard dot-format (e.g., “192.168.1.2”) or as server
address names resolvable by a DNS server (e.g., “smtp.myserver.de” or “pop3.myserver.de”).
Inactivity Timeouts:
Inactivity timeouts are not part of the Internet AT command functionality implemented with Multi-Tech wireless
modem and, if desired, are the responsibility of the host application. It is recommended that the host application
validates URCs and AT command responses and reacts adequately. Example: Sending a close message or a
starting timer.
10.1 AT^SICS Internet Connection Setup Profile
Description:
AT^SICS serves to create and edit Internet connection profiles. A connection profile can be
assigned to one or more service profiles defined with AT^SISS, and thus, determines which type of
connection is to be established when opening a service profile with AT^SISO.
The AT^SICS read command requests the current settings of all Internet connection profiles. One
line is issued for every possible parameter of a given “conType” value.
The AT^SICS write command specifies all parameters of a connection profile identified by
. At first, the type of Internet connection needs to be selected via
value “conType”. This determines the applicability of all other values related to this
“conType” and automatically sets their defaults. An exception to the
which can be set before or after selecting “con-Type”. To change the settings the write command
needs to be executed for each single .
All profile parameters set with AT^SICS are volatile. Therefore, the best practice is to use scripts
and let the host application handle the required At commands.
Table 10.1: Applicability of AT^SICS values
value CSD GPRS0 / GPRS1
“conType” mandatory mandatory
“user” optional optional
“passwd” optional optional
“apn” ø mandatory
“inactTO” optional optional
“calledNum” mandatory ø
“dataRate” mandatory ø
“dataType” mandatory ø
“authMode” mandatory mandatory
“dns1” optional optional
“dns2” optional optional
“alphabet” optional optional
Test Command Syntax:
Response:
Read Command Syntax:
Response:
AT^SICS=
OK
AT^SICS
^SICS: , ,
OK
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 122