EC25 how to receive MMS?

IoT Modules LTE Standard Module
1

I’m makking a device by voip app.
long message send is OK.
but not receiving a long message( only text or MMS )

How to receive MMS or Long text message in EC25 modem?
Please give me that’s manual or link to fix it.

2

Hello an44, thanks for your question
According to the content of your question, I guess that short messages can be received, but long messages cannot be received. If you want to send long text messages, you can execute AT+QCMGR command to send Concatenated messages. For details, please refer to Chapter 9.18 of AT Command Manual. If you want to send MMS, you can refer to the attached document, thank you. (Quectel_EC2x&EG9x&EG2x-G&EM05_Series_MMS_Application_Note_V1.2 | Quectel)

3

Hi Duncan,

I’m trying to download MMS content via EC25/EG25. I receive an MMS and get the content URL from it.

I run the following commands:

AT+QICSGP=1,1,“chatrweb.apn”,“”,“”,1
AT+QMMSCFG=“mmsc”,“correct mmsc”
AT+QMMSCFG=“proxy”,“correct proxy”,80
AT+QMMSCFG=“contextid”,1
AT+QIACT=1
AT+QHTTPURL=“MMS content URL”
AT+QHTTPGET

At this point, I get an error that DNS failed.

Then I tried downloading the Google page and it worked just fine

AT+QHTTPURL=“google URL here”
AT+QHTTPGET

It looks like the EC25/EG25 modules ignore the MMS proxy settings and try loading the MMS content via the regular access point.

Is this the module limitation or am I doing it wrong?

4

Hi @Denis_Poduzov
Directly set the MMS proxy for HTTP is not effective, you can add the proxy information to the custom http header, and then to the request.