How to check network connectivity without adding any data charge

IoT Modules LTE Standard Module
1

I am using a Quectel EC25-AF module in an iot product. I want to check the network connectivity of my LTE sim using at command or any other method. But I also not want to add any additional data charge to my consumer.

What can be the best way to achieve this?

1 Like
2

You can achieve the issue with the following query AT Command:

at+cgatt?
at+cereg?

3

@herbert.pan-Q how I will conclude with those commands if the if at+cgatt? is 0 if that indicates there is no network connectivity?

4

yes,However, if there is no data interaction, the module will enter the idle state after 20 seconds. Then when you send or receive data, the module goes back to the connected state.

5

@herbert.pan-Q
Thanks for your response.
But actually my requirement is I want to monitor if the LTE sim card will be able to connect to the internet without any chargeable transaction of data.

I DON’T want to send/receive or do a continuous ping as that will result in data consumption.

Is there any such way?

6

@herbert.pan-Q Or is there any internal handshake that happens with the service provider on the basis of which I will be able to conclude that the sim will be able to access internet if end user wants to perform any action?

7

As an option I was thinking of using AT+QPING will it consume data or otherwise will it help anyhow to reduce data consumption?
Or is there any fix IP which I can ping for which service provider will not charge me.

8

hi,Sunidhi_Dixit:
You can check the network through QPING, which consumes less data throughput.
But when you power up the module, with the AT command AT +cereg? /at+cgatt? If the network status is +CEREG:1 / + CGATT :1, the network is successfully registered and waiting for you to send data at any time.