RAI feature with LTE-M and MQTT

Question

Hi there, 
 We are currently conducting tests on the nRF9160 using the LTE Serial Modem app. We do however have issues testing the RAI feature on the device with an LTE-M network. The network does indeed support the RAI feature, as we have been able to test this using different devices. 
 According to the AT commands reference manual, the %XRAI command is not supported in a LTE-M network? Is that indeed the case? 
 
 We then refer to the %RAI (8.17 in AT commands reference manual) and %REL14FEAT (8.18). However, we are not able to use any of these 2 features? We continuously get the "ERROR" response when trying to active the REL 14 features. We have set CFUN to 0,1 and 4 to attempt this. 
 Can you please assist with instructions on how to enable this feature on a LTE-M network so that we can test it? 
 This is very urgent as we need to decide on which hardware we will use in our product today/Monday.

Albrecht Markus Schellenberger · Accepted Answer

Hello Frikkie, 
 Frikkie Badenhorst said: Do you perhaps have an application note/instructions on how to use and test this feature - more specifically how to give the release assistance information via a socket interface to the modem? 
 You can have a look at the nRF9160: Modem Shell application as it demonstrates how to use the %RAI command. This is as well described in the application guide. 
 Frikkie Badenhorst said: Will this requires writing application code? 
 Yes. You have to customise your application since we do not have a single sample for every AT command supported by the modem. 
 Frikkie Badenhorst said: Thus if it is needed to change application code, can you kindly provide the hex file so that we can test it? 
 Unfortunately, I can’t provide you with any .hex file more than the application firmware images that are officially released for the nRF9160 DK . 
 Regards, 
 Markus

RAI feature with LTE-M and MQTT

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