Hello.
I purchased LTE gateway (Modem for SMS/CALL) using Quectel EC25-E.
When I try to use it in Korea, I am having a hard time because only the data network using VoLTE is available at the corresponding telecommunication company.
While exploring how to set up SMS sending and VoiceCall using Volte, I failed to write on the forum.
The EC25-E chipset supports Volte,
AT+CREG
AT+CGREG
AT+CFUN
AT+COPS
AT+QMBNCFG
AT+QCFG=“ims”
AT+CGDCONT
AT+CGACT
//I tried the necessary things with the command above, but it failed.
+COPS: (2,“LG U+”,“LG U+”,“45006”,7),(3,“KT”,“KT”,“45008”,2),(3,“450 12”,“450 12”,“45012”,7),(3,“450 30”,“450 30”,“45030”,7),(3,“KOR SK Telecom”,“SKT”,“45005”,2),(3,“KOR SK Telecom”,“SKT”,“45005”,7),(3,“KT”,“KT”,“45008”,7),(0-4),(0-2)
//Using LG U+ 45006 above,
AT+QMBNCFG=“list”
+QMBNCFG: “List”,0,0,0,“ROW_Generic_3GPP”,0x0501081F,202108201
+QMBNCFG: “List”,1,0,0,“Reliance_OpnMkt”,0x05011B38,202003251
+QMBNCFG: “List”,2,0,0,“TW_Mobile_China_VoLTE”,0x0580FB81,202104162
+QMBNCFG: “List”,3,0,0,“Bouygues_France_VoLTE”,0x05800101,201905211
+QMBNCFG: “List”,4,0,0,“Telstra-Commercial_VoLTE”,0x0580079E,202105192
+QMBNCFG: “List”,5,0,0,“Commercial-Smartfren”,0x0501250A,202012291
+QMBNCFG: “List”,6,0,0,“VF_Germany_VoLTE”,0x0502041C,202111041
+QMBNCFG: “List”,7,0,0,“Swis_switzerland_VoLTE_VoWiFi”,0x05011421,201910291
+QMBNCFG: “List”,8,0,0,“TF_Spain_VoLTE”,0x05010CFA,202106171
+QMBNCFG: “List”,9,0,0,“Commercial-DT”,0x05011F1C,202111101
+QMBNCFG: “List”,10,0,0,“Commercial-KT”,0x05012C0D,202108241
+QMBNCFG: “List”,11,0,0,“Commercial-SKT”,0x05012715,202103121
+QMBNCFG: “List”,12,1,1,“Commercial-LGU”,0x05012626,202108241
+QMBNCFG: “List”,13,0,0,“Commercial-Airtel”,0x05011A0A,000000000
+QMBNCFG: “List”,12,1,1,“Commercial-LGU”,0x05012626,202108241
//It’s LG’s commercial network, but I think it’s an Internet phone network.
//Do I need to add MBN list?
//I’m sorry for my poor English
//Next time, I’ll write down the actual input and the result.