I am using a sample app to send/receive messages but I have noticed that there is a long latency with the handler when receiving SMS and I am trying to understand if this is due to the network, signal or the app itself. This is the radio signal for the SIM: root@fx30s:~# cm radio Power: …

These are the errors which I see from the logs when I am sending an SMS and the handler is not getting invoked.

you can try on AT command port first to isolate if this is related to network or application

how do you send messages to the AT port?

you can see here: [image] EM7305 no sms sending option MC/EM Series You can use AT command AT+cmgf=1 At+cmgs=“1234567” hello Ctrl+z

I don`t have problems on sending messages out, but only on receiving messages.

then did you see the SMS receive indication? [image] How to read incoming SMS? Legacy HL Series This seems like a no-brainer, I am using an HL7588 and have read dozens of tutorials like this one: developershome.com/sms/howTo … C.asp#11.1 and they all point me back to AT+C…

it seems that the AT port will behave as the Handler itself, so to say, as soon as the +CMTI: “ME”,XX is displayed then the message handler will be invoked. root@fx30s:~# microcom /dev/ttyAT +CMTI: “ME”,40 +CMTI: “ME”,41 +CMTI: “ME”,40 +CMTI: “ME”,41 +CMTI: “ME”,40 +CMTI: “ME”,41 +CMTI: “ME”…

then maybe network operator problem…

This is what happens: using phone number 1 to send messages, at a given point the modem will stop receiving messages then I use phone number 2 and the message will be received immediately, also the messages sent from phone number 1 will be received. After a couple of messages, SMS from this nu…

Long latency when receiving SMs on FX30

IoT Gateways FX30

jyijyi May 4, 2021, 2:42am 6

you can see here:

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SMS doesnt get received anymore Open AT	5	2069	December 7, 2011
Received SMS messages not reaching the SMS Handler Open AT	34	18203	February 27, 2014
+CMTI not received if sms send while FX100 is power down Legacy FX/FXT series	12	3750	July 25, 2014
SL8090 Synchronisation indication for SMS retreival Legacy AirPrime modules	5	1904	July 25, 2014
Need a method to find out if i'm receiving a SMS Legacy FX/FXT series	3	1518	October 19, 2015

Long latency when receiving SMs on FX30

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