Category Archives: IoT

Internet of Things

MOBITEK Sells Various Brands of GSM Modem

GSM modems are used in various industries. Different modem manufacturers implement different AT commands, therefore systems or applications cannot easily switch modem from 1 manufacturer to another.

We are pleased to inform you that we are able to supply GSM Modem from these manufacturers / brands:-

SIERRA WIRELESS FXT009 GSM Modem

WAVECOM GSM Modem

Maestro GSM Modem M100

Siemens GSM Modem MC55iT

Please contact us for further information.

How to Send MMS Using MOBITEK Q25 Modem

Note:-

  1. The correct AT commands for sending MMS is saved in “X:\Reports by Trainees\Taufiq\A20-T-30-4G Modem (Q25)\MMS\MMS Script.ini”.
  2. The MMS settings (AT+QMMSCFG=”mmsc”, AT+QMMSCFG=”proxy, etc.) cannot be saved using “AT&W”, the settings must be re-set after modem is rebooted.
  3. Must use QCOM instead of Hyper Terminal to upload image file.
  4. When MMS is successfully send, the response is “+QMMSEND: 0,200”

 

AT COMMANDS FOR MMS

Note: This script is located in “X:\Reports by Trainees\Taufiq\A20-T-30-4G Modem (Q25)\MMS\MMS Script.ini”. It must be executed one-by-one because the delay time is not set. Load the script in QCOM to use it. The MMS Settings used is MAXIS’s MMS Settings:

AT COMMAND DESCRIPTION
AT+CPIN? To enter a password or query whether or not the module requires a password.

If the reply is “+CPIN: READY”, meaning the module is not pending for any password.

AT+QICSGP=1,1,”unet”,”maxis”,”wap”,1 Configure parameters of a TCP/IP context.

AT+QICSGP=<contextID>,<context_type>,<APN>,<username>,<password>,<authentication>

AT+QIACT=1 Activate a PDP context.
AT+QIACT? OPTIONAL.

Return the list of the current activated contexts and their IP addresses:

+QIACT: 1,1,1,”100.66.207.181″

+QIACT: <contextID>,<context_state>,<context_type>,<IP_address>

AT+QMMSCFG=”contextid”,1 Set the PDP context ID.
AT+QMMSCFG=”contextid” OPTIONAL.

Query the PDP context ID.

+QMMSCFG: “contextid”,1

AT+QMMSCFG=”mmsc”,”http://172.16.74.100:10021/mmsc” Configure the URL of MMSC.
AT+QMMSCFG=”mmsc” OPTIONAL.

Query the URL of MMSC.

+QMMSCFG: “mmsc”,”http://172.16.74.100:10021/mmsc”

AT+QMMSCFG=”proxy”,”202.75.133.49″,80 Configure the proxy address and port of MMSC
AT+QMMSCFG=”proxy” OPTIONAL.

Query the proxy address and port of MMSC.

+QMMSCFG: “proxy”,”10.0.0.172″,80

AT+QMMSCFG=”sendparam”,6,2,0,0,2,4 Configure the sending parameters.

AT+QMMSCFG=”sendparam”,<valid>,<pri>,<sendrep>,<readrep>,<visible>,<class>

AT+QMMSCFG=”sendparam” OPTIONAL.

Query the sending parameters.

+QMMSCFG: “sendparam”,6,3,0,0,2,4

AT+QMMSEDIT=1,1,”+60174616341″ Add a phone number as a recipient.
AT+QMMSEDIT=1 OPTIONAL.

Query the recipient phone number.

AT+QMMSEDIT=1,1,”+60174616341″

AT+QMMSEDIT=4,1,”Test MMS” Edit the title of the MMS message.
AT+QMMSEDIT=4 OPTIONAL.

Query the title of the MMS message.

+QMMSEDIT: 4,”ASCII”,”Test MMS”

AT+QFUPL=”RAM:MOBITEK.jpg”,58773,60 Upload a file to RAM. The file will be saved as “MOBITEK.jpg” and the maximum size of file is 7708 bytes. 60 indicates timeout value, and 1 indicates ACK mode.

Wait for:

CONNECT

Then select the file to upload and click “Send File”:

The response after the file successfully uploaded:
+QFUPL: 7708,8fd3

AT+QFLST=”RAM:*” OPTIONAL.

Query all files in RAM.

+QFLST: “RAM:MOBITEK.jpg”,7708

AT+QMMSEDIT=5,1,”RAM:MOBITEK.jpg” Add attachments for the MMS message.
AT+QMMSEDIT=5 OPTIONAL.

Query the attachments.

+QMMSEDIT: 5,”RAM:MOBITEK.jpg”

AT+QMMSEND=5000 Send the MMS message.
AT+QFDEL=”RAM:*” Delete the RAM file.

Query all files in RAM.

AT+QFLST=”RAM:*” OPTIONAL.
AT+QMMSEDIT=0 Clear the content of the MMS message.
AT+QMMSEDIT=1 OPTIONAL.

Query the recipient phone number.

AT+QMMSEDIT=4 OPTIONAL.

Query the title of the MMS message.

AT+QMMSEDIT=5 OPTIONAL.

Query the attachments.

 

How to Install USB Driver of MOBITEK Q25 and Find the COM Port Number

Step 1: DO NOT connect USB cable or connect modem to PC/server.

Step 2: Install the USB driver first by extracting the “.zip” file after downloaded and run the “setup.exe”. USB driver can be downloaded from here – Download USB Driver

Step 3: Choose the installation folder or path, then click on ‘Next’.

Step 3: Click on ‘next’. Wait until the installation complete.

 

Step 4: Click on ‘Install’.

Step 7: Make sure to restart the machine or computer in order to use the installed driver.

Step 8: After computer is restarted, connect the modem to the computer. In device manager, the connected modem is listed as ‘Quectel USB AT Port (UMTS)’. In this example, the modem is connected to COM port number 8.

Does Shutting Down 3G Network Affect the Functionality of MOBITK Q24 and MOBITEK S80 SMS Modem (GSM Modem)

Question: Malaysia TELCO phasing out 3G soon, may we know if MOBITEK S80 (3G) and MOBITEK Q24 (2G) SMS Modem will be affected (not able to send out SMS)?

 

Answer no. 1: please refer to

3G Shut Down: Millions of Maxis & Celcom 4G customers may need 2G to make Calls

“Malaysia is among a limited countries around the world that have decided to shut down its 3G networks while maintaining 2G.

“As a safety net, 2G network will still be maintained to ensure customers are able to make calls and SMS seamlessly, whenever 4G is inaccessible,”

 

Answer no. 2: please refer to

Digi begins shutting down its 3G network, here’s the full schedule

Digi CTO Kesavan Sivabalan said: “Our priority remains in ensuring high availability and consistency of our 4G network services, and to do so effectively, it is necessary that we retire the 3G network, freeing up crucial spectrum and resources that would now be channelled towards increasing capacity of the 4G network to support higher usage.”  Users with 3G devices can still stay connected to 2G after the 3G shutdown. While 2G is sufficient for basic voice calls and SMS, it is barely usable for internet services in this day and age.

 

Answer no. 3: please refer to

Malaysia has not fully shut down its 3G networks, over 440,000 users have not switched to 4G phones

Malaysia was supposed to shut down all 3G networks by the end of 2021 but it turns out that some 3G sites are still operational. This was revealed during the recent JENDELA update for the final quarter of 2021.

3G users can still use their existing phones after the 3G shutdown but their devices will connect to the slower 2G connection, which can be used for basic voice calls and SMS.

Therefore, as long as 2G network is maintained, MOBITEK S80 (3G) and MOBITEK Q24 (2G) SMS Modem can still send and receive SMS.

COM Port Number of MOBITEK E20 Modem Will Change If USB Port is Changed

Conclusion: COM Port number will change if MOBITEK E20 4G Modem connects to different USB port.

TEST OBJECTIVE TESTING METHODOLOGY TEST RESULT
To test if the COM port number of MOBITEK E20 4G Modem will change if USB port is changed.
  1. Connect MOBITEK E20 4G Modem to all 4 USB ports in Dell-E6410.
  2. For each USB port connected, check the Device Manager to see whether the COM port is change or not.
  1. USB port right bottom -> COM19
  2. USB port right top -> COM27
  3. USB port left bottom -> COM47
  4. USB port left top -> COM43