Rev 2.0 12-12-2008
Gprs/Gsm wireless modem with RS232 interface
12
+CSMS: 1, 1, 1
OK
at+cnmi=2,2,0,0,0
(set to receive SMS and route directly to TE)
OK
+CMT: "+13537491551",”06/03/17, 13:59:18+00" (message received and directly routed to TE)
TEST2
Receive Example 3: Receive SMS message in text mode by directly routing the received message to the TE
through the serial port using Phase 2+:
at+cmgf=1
(set to text mode)
OK
at+csms=1
(set to Phase 2+)
+CSMS: 1, 1, 1
OK
at+cnmi=2,2,0,0,0
(set to receive SMS and route directly to TE)
OK
+CMT: "+13537491551",”06/03/17, 14:01:17+00" (message received and directly routed to TE)
TEST3
+cnma
(acknowledge that message has been received)
OK
3.3.
Internet Access
Internet access can be setup in Windows Dial-Up Networking (DUN) of the computer that the wireless modem is
serving. Setup procedures will vary according to the type of wireless service provider used. To access
Dial-Up
Networking
on your PC, go to
Start > Accessories >COMMUNICATION> Network Connections
.
• For GSM-without-GPRS, a circuit-switched data connection is used. The user can set up DUN to make a
conventional V.32 modem connection to any terminating modem at the other end. The phone number specified in
DUN can be one supplied by the wireless service provider or another phone number related to a different dialup
modem service (e.g., a dialup modem service phone number from any commercial or private dialup network).
• For GSM-with-GPRS, a single DUN number is generally used by all of a wireless provider’s subscribers
throughout its area of coverage; regional, nationwide, continental, etc. Rather than being a literal phone directory
number, as in conventional DUN, this is a code that gives the modem Internet access.
Connecting to the GPRS Network for Internet Access
After you have inserted the SIM card and the modem is ready for use, you can establish an Internet connection
through a Windows dial-up session.
Note that your wireless provider will charge you for data usage.
Requirements
• One wireless GPRS modem
• The GPRS modem should have an active SIM card and must have GPRS services
• The modem must be getting a proper signal and be showing a network registration through the wireless
provider’s network
• A PC running Windows XP or 2003 with the GPRS drivers installed for your particular model
The following instructions are for Windows XP SP2 and Windows 2003. Every PC may have slight differences
which may cause the instructions to be different. Use these instructions as a guide to help you understand what is
required to set up an Internet connection through your wireless service provider for all operating systems.
Note:
Cellular providers provide Internet services as part of your service plan. recommends that if you plan on
using large amounts of data, to sign up for an unlimited data service plan with your provider.
will not be responsible for any charges on your cellular bill. If you have any questions about billing, service plans,
service charges, etc., please contact your provider for more information.
Set the Access Point Name (APN) into the Modem’s Properties on Your PC
In order for your GPRS wireless modem to connect to your provider’s network, you must tell the modem the
Access Point Name (APN) to which it will connect. The APN is a server name that your account is setup on with
your provider. Your APN will be given to you by your provider.
Steps for Setting the APN
1.
Start by clicking on
Start
and then clicking on
Control Panel
.
2.
In the Control Panel, double-click on
Phone and Modem Options
.
3.
The
Phone and Modem Options
window appears. Click on the tab labeled
Modems
. Highlight the wireless
modem listed in the table and then click on
Properties
.
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