M66 - problem with send long SMS (>160 characters) in MTS network - https://www.mts.am

IoT Modules GSM Module
1

Hi,

my device which has M66 will not send SMS over 160 characters with sim card from armenian network https://www.mts.am. Device works in Armenia. I use standard command - AT+CMGS. Device works with no problem in Poland.

Could You help me ?
Thanks.

2

Hi Ice_m:
Could you please provide the specific AT log?

3

Hi , I don’t understand - what specific AT log ? Maybe is there some char from ASCII, than after send this character other characters aren’t be use in message content ?

4

Does this mean that an error will be reported when sending SMS? You can send us screenshots of all AT commands you execute.

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5

Hi, I understand,I make AT list which are send after power on . I can’t get device to check it, (I live in Poland), even I get it, I need make test in Armenia , not in Poland, but it is impossible ;). , so there is a problem. If I can get it, I can make any test.

6

Hi，
It is recommended that you can ask someone from Poland to contact our local technical support directly.

7

Hi, technical support in Poland will tell me that I need read datasheet etc ;). They will not help me in this case :).
I will make AT list before Friday in this week, If You could help me I’ll be really happy.

8

Hi, AT command:

AT;
AT+IPR=9600&W;
AT+CPIN=0000;
AT+CMGF=1&W;
ATE0;
AT+CSCS=“GSM”;
AT+QSMSCODE=0&W;
AT+CMGS… -> there is data (max. 702 characters) ASCII characters

9

Is it normal for the module to send 160 bytes of SMS use those AT commands?What error is reported when sending SMS using at+cgms？In general，The module can send a maximum of 160 bytes of a single SMS message.

10

Hi, You haven’t right - I can send by one AT+CMGS command more than 160 characters. There are information about it in some SMS datasheet which is available in Qucetel. For example I send 702 characters by use one AT+CMGS command - in Poland. This works in other UE country too. It is first time, where is a problem with that. Module works normal - send information for example about send status, deliver , problem with network etc.

11

Hi Ice_m:
Please contact support@quectel.com for more help.This problem may need grab logs for R&D to analysis.

12

I did it a few days ago. They gave me information what I knew - network support long sms or not ;).