Can't Connect to internet connection

I can’t Connect the module to internet.I’m using a EM7511 module.During AT!SCACT=1,1 using no service network.Please give some solution regarding this problem?

please see here:

AT!SCACT is work fine but after sudo udhcpc -i wwan0 using this comment it shows network down

How about using connection manager

the network connection is ok now,but i can"t access sms or call.How to enable VoLTE in EM7511?We are using Jio Sim.

Please open new topic on new question