I’m currently working on EC25-E module with its development board and got stuck with the two issues:
I’m unable to make and receive voice calls with JIO SIM (Indian Network operator). Rather I’m
able to transmit text messages to this device with JIO operator.
While using other 4G operators(Vodafone) the voice calling works fine.
If I connect the EC25 Development Board to PC via Debug port COM2 (to open the linux shell of
EC25) and after opening the Serial Terminal in PC, it asks for the Login username and password.
I’m unable to login here, as the credentials are not provided in the documentation.
Awaiting a solution for my queries.