virtual access GW2040 Series User manual

SIM Management on GW2040
Series Dual SIM 3G Routers
Issue
10.1
Date
11 August 2012

Table of contents
Copyright 2012 Virtual Access (Irl) Ltd. This material is protected by copyright. No part of this material may be reproduced,
distributed, or altered without the written consent of Virtual Access. All rights reserved. Third party trademarks are the property
of the third parties.
SIM Management on GW2040 Series Dual SIM 3G Routers
Issue: 10.1 Page 2 of 16
1Introduction ............................................................................................ 3
1.1 The GW2040 Series router ..................................................................... 3
1.2 Document scope ..................................................................................... 3
1.3 Document readership ............................................................................. 3
2SIM failover overview.............................................................................. 4
2.1 Configuring dual SIM functionality ......................................................... 4
2.2 Setting a secondary SIM username and password ................................. 5
3Dual SIM management ............................................................................ 7
3.1 Changing an active SIM .......................................................................... 8
3.2 Reset modem ......................................................................................... 9
4Single SIM management........................................................................ 10
5SMS ....................................................................................................... 11
5.1 Configuring the GW2040 for SMS support ............................................ 11
5.2 SMS concatenation ............................................................................... 13
6Save your configurations....................................................................... 14
7Diagnostics............................................................................................ 16

1: Introduction
SIM Management on GW2040 Series Dual SIM 3G Routers © Virtual Access Ltd.
Issue: 10.1 Page 3 of 16
1Introduction
1.1 The GW2040 Series router
Virtual Access GW2040 Series routers are versatile, rugged and compact 3G wireless
routers suitable for a variety of business and industrial applications. The routers have
dual SIMs for 3G network redundancy.
You can configure the GW2040 Series routers to receive SMS messages to improve
ongoing management and support.
1.2 Document scope
This document describes:
SIM features and functionality on the GW2040;
how to configure and manage single and dual SIM features;
how to receive SMS messages; and
how to diagnose SIM issues
1.3 Document readership
This document is for engineers who need to configure and manage a GW2040 router.

2: SIM failover overview
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Issue: 10.1 Page 4 of 16
2SIM failover overview
The GW2040 router can be configured to failover to an alternate SIM if the main SIM fails
to register. When this feature is enabled the GW2040 router will monitor the network
registration status of the 3G data card on start up. There are two steps to setting up a
successful data call: registration to a network and establishing a call.
If the GW2040 router fails to register to a network after a configured time, it will switch
to the secondary SIM.
When there is a successful registration, the 3G data card will attempt to establish a call.
If the call fails, after a configurable number of call attempts it will switch to the
secondary SIM.
If the secondary SIM registers correctly and the data call using this SIM is successful, the
GW2040 router can be configured to either continue with this SIM, or to switch back to
the main SIM after a specified period of time. If either the registration or the data call
using the secondary SIM is unsuccessful, the router will switch back to the main SIM
again and the process will be repeated.
2.1 Configuring dual SIM functionality
To configure dual SIM functionality, on the Start page, click Advanced.
In the Advanced menu, click Expert View.
In the Expert View menu, select interfaces -> modem-0 -> gsm. The Modem Interface
GSM page appears.
Click Advanced to view advanced options.
Figure 1: Advanced options on the GSM on modem page
Enter the parameters listed in Table 1 and then click Update. You can leave saving your
configurations until you have made all the configuration changes you need to.

2: SIM failover overview
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Issue: 10.1 Page 5 of 16
Field name
Description
Command line
SIM Switch Enabled
Enables switching between SIMs.
Select Yes.
set Modem Interface GSM SIM
Switch Enabled modem-0,yes/No
Main SIM
Specifies the SIM to use at start-up.
Select SIM 1 or 2
set Modem Interface GSM
Main SIM modem-0,
sim1/sim2
Secondary SIM APN
Defines the secondary APN. Type in
APN.
set Modem Interface GSM
Secondary SIM APN modem-
0,APN2
Secondary SIM PIN
Defines the secondary PIN. Type in
the PIN code from your service
provider.
set Modem Interface GSM
Secondary SIM PIN modem-0,
SIM Switch Network
Registration Timeout
Specifies the time in seconds before
switching to the alternate SIM if the
network registration fails. The
default setting is 60.
set Modem Interface GSM SIM
Switch Network Registration
Timeout modem-0,60
SIM Switch
Maximum Call
Attempt Failures
Specifies the number of failed call
attempts before switching to
alternative SIM. The default setting
is 10.
set Modem Interface GSM SIM
Switch Maximum Call Attempt
Failures modem-0,10
SIM Switch Main SIM
Fallback Timeout
Specifies the number of seconds
before switching back to main SIM.
The default setting is 0; that is, no
fallback.
set Modem Interface GSM SIM
Switch Main SIM Fallback
Timeout modem-0,0
Table 1:The fields, descriptions and command lines for configuring dual SIM
2.2 Setting a secondary SIM username and password
To set the secondary SIM username and password, in the Expert View menu, select
Advanced > interfaces > ppp-1 > ppp > authentication > name and password
Click Advanced and enter in the secondary username, password and password
confirmation.
Figure 2: The name and password page

2: SIM failover overview
SIM Management on GW2040 Series Dual SIM 3G Routers © Virtual Access Ltd.
Issue: 10.1 Page 6 of 16
Secondary SIM Local
Username
Type in the secondary local
username.
set PPP Interface
Secondary SIM User Name
ppp-1,USERNAME
Secondary SIM Local
Password
Type in the secondary local
password.
set PPP Interface
Secondary SIM User
Password ppp-1,PASSWORD
Secondary SIM Local
Password Confirm
Retype the password to confirm it.
Table 2: The username and password field descriptions and command lines

3: Dual SIM management
SIM Management on GW2040 Series Dual SIM 3G Routers © Virtual Access Ltd.
Issue: 10.1 Page 7 of 16
3Dual SIM management
You can manage dual SIM operation using the 3G Info applet or the command line. To
view 3G information, on the Start page, click Status.
Figure 3: Manage dual SIM operation using the 3G info applet
In the Status menu, click 3G info. The 3G Info applet appears.
Figure 4: The 3G info applet
From this applet, you can change the active SIM and reset the modem.

3: Dual SIM management
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Issue: 10.1 Page 8 of 16
3.1 Changing an active SIM
To change the active SIM to the alternative SIM, click Change Active SIM. The SIM
Switch Configuration pop-up window appears.
Figure 5: The SIM switch configuration pop-up window
Select the alternative SIM and click Update.
The 3G Info applet now shows the alternative SIM.

3: Dual SIM management
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Issue: 10.1 Page 9 of 16
Figure 6: 3G info showing alternative SIM details
The command line parameter to change the active SIM is:
set modem interface gsm active sim modem-0 sim1|sim2
3.2 Reset modem
The reset modem button resets the 3G module on the GW2040. You may need to do this
to clear an unstable connection. You can monitor this reset through the Trace Analyzer.
To view the Trace Analyzer, in the Expert View menu, select Advanced > diagnostics >
trace analyzer) and select tracing of MODEM events, or use the command line.
To monitor on the command line, set
++modem (note: to stop tracing type –sign)
The command line parameter to reset the modem is:
reset modem modem-0

4: Single SIM management
SIM Management on GW2040 Series Dual SIM 3G Routers © Virtual Access Ltd.
Issue: 10.1 Page 10 of 16
4Single SIM management
The GW2040 has a reset feature that you can use when a single SIM is deployed. This
feature reboots the GW2040 3G module in the event that certain failure criterion have
been reached.
To access the reset parameters, in the Expert View menu, click interfaces - > modem-
0 - > gsm. The Modem Interface page appears.
Click Advanced to view the advanced options and automatic reset parameters.
Figure 7: The modem interface advanced options page
Note: the automatic reset feature and SIM switch are exclusive of each other. Do not
enable them at the same time.
Field
Description
Command Line
Automatic Reset
Enabled
Enables or disables the Automatic
Reset feature.
Select Yes or No.
set Modem Interface GSM
Automatic Reset Enabled
modem-0 yes/no
Automatic Reset
Maximum Number of
Resets
Defines the maximum number of
unsuccessful reset attempts before
the router is rebooted. The default
setting is 10.
set Modem Interface GSM
Automatic Reset Maximum
Number Of Resets modem-0
10
Automatic Reset
Registration Timeout
Defines the timeout in seconds
before the modem is reset. The
registration is with the base station.
The default setting is 60.
set Modem Interface GSM
Automatic Reset Network
Registration Timeout
modem-0 60
Automatic Reset
Maximum Call
Attempt Failures
Defines the number of failed calls
(network terminated) before
resetting the card. The default
setting is 10.
set Modem Interface GSM
Automatic Reset Maximum
Call Attempt Failures
modem-0 10
Table 3: The automatic reset field descriptions and command lines

5: SMS
SIM Management on GW2040 Series Dual SIM 3G Routers © Virtual Access Ltd.
Issue: 10.1 Page 11 of 16
5SMS
The Virtual Access GW2040 router can accept router set and show commands via SMS.
This section describes how to configure these settings.
5.1 Configuring the GW2040 for SMS support
To set a global SMS enable parameter, in the Expert View menu, select Advanced >
Expert View > system > sms > system. The SMS System page appears. Click
Advanced to view advanced options.
Figure 8: The SMS system page
Field name
Description
Command line
SMS Enabled
Enables SMS functionality
Set SMS Commands Enabled ,yes/No
Command Separator
Specifies command separator
set SMS Commands Separator
= :
Concatenation
Enabled
Enables concatenation of SMS
messages
set SMS Commands
Concatenation Enabled yes
Maximum Message
Size
Specifies maximum send message
size (default 360)
set SMS Commands Maximum Message
Size 360
Maximum Reply
Message Size
Specifies maximum reply message
size from GW2040 (default 1530)
Set SMS Commands Maximum Reply
Message Size 1530
Table 4: The sms system field descriptions and their command lines
For an SMS message to be accepted by the GW2040, you must configure a caller ID. In
the Expert View menu, click system > sms > originator caller id. The SMS caller id
List page appears.
In the Operation column, click Add. The SMS Originator Caller ID Entry page appears.

5: SMS
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Issue: 10.1 Page 12 of 16
Figure 9: The SMS originator caller ID entry page
Field name
Description
Command line
Enabled
Enables SMS functionality for caller
Id x. Select Yes.
Set SMS Commands
Originator x Enabled yes
Enabled
Enables a caller originator for index
x
Set SMS Commands
Originator CallerId x yes
Description
Description of incoming caller
set SMS Commands
Originator Description
‘text’
Caller Id
Incoming caller ID
set SMS Commands
Originator CallerId x
‘calling number’
Response Enabled
Defines the secondary PIN. Type in
the PIN code from your service
provider.
Set SMS Commands
Originator Response
Enabled x yes
Table 5: The caller ID entry page field descriptions and command lines
The Caller ID parameter specifies the caller ID that will be used to verify if the text
message comes from an acceptable source.
Specify the caller ID in international format, either '[phone]',
'00353861234567' or '353861234567'.
You can specify up to 10 caller IDs. An '*' acts as a wildcard, for example, '+35386*' will
allow access for all caller IDs starting with '+35386'. A caller ID of just '*' will give access
to anyone.
When you set Response Enabled to yes, the GW2040 module will respond to a received
SMS.
A ‘Magic’caller facility exists which allows the GW2040 to receive an SMS from any
number as long as it is in the following format:
'serial_number:super_password:your_command_here'
For example; '00E0C800EF83:password:uptime' will return the results of ‘uptime’ to a
GW2040 with a serial number of 00E0C800EF83 and a password of ‘password’.
The global SMS enable command must be set for this to work.

5: SMS
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Issue: 10.1 Page 13 of 16
5.2 SMS concatenation
Concatenation of SMS messages is supported on the GW2040 by default. There are 3
commands specific to this which can be located at system > sms > originator caller
id. Concatenation must be set to yes and the default values for message size sent and
received are 306 and 1530 characters respectively.
A command separator can also be used to send multiple commands in an SMS message.
You can monitor SMS activity through the GW2040’s Trace Analyzer Select Advanced >
diagnostics > trace analyser; or use the command line: ++sms on the command line.
An example of an incoming SMS message is:
|21:38:49 modem-1: SMS received, originator: 00353872241010 (NOC)
|21:38:55 modem-1: SMS sent

6: Save your configurations
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Issue: 10.1 Page 14 of 16
6Save your configurations
You can leave saving your configuration until you have made all the configuration
changes you need to. Once you update the changes, a save to flash is required.
When you have made your final configuration, click Update. The Configuration Update
Result page appears.
Figure 10: The configuration update result page
Click saved to flash. The Save Configuration to Flash page appears.
Figure 11: The save configuration to flash page
Click Save. The Configuration Saved page appears.

6: Save your configurations
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Issue: 10.1 Page 15 of 16
Figure 12: The configuration saved page
Click Reload Router.
The Reload Router button shows a progress timer and then the page returns to the
Fast.Start page.

7: Diagnostics
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Issue: 10.1 Page 16 of 16
7Diagnostics
The Virtual Access GW2040 has a number of useful diagnostic features for debugging and
analyzing 3G connections. The following commands can be viewed using the command
line.
show modem if status modem-0
Figure 13: Output from the command line show modem if status modem-0
show stats modem-0
Figure 14: Output from the command line show stats modem-0
show modem interface gsm technology modem-0
Figure 15: Output from the command line show modem interface gsm technology modem-0