Hello.
We are making voice products for the Japanese market.
Is it possible to support docomo/Softbank/KDDI VoLTE with the same firmware?
I can connect and make calls with docomo, but I cannot connect to the KDDI/Softbank network using EC25-J.
Could you please provide us with firmware or mbn files that are compatible with docomo / KDDI / Softbank 's VoLTE?
The following was obtained using a KDDI SIM card.
ATI
Quectel
EC25
Revision: EC25JFAR06A06M4G
AT+QGMR
EC25JFAR06A06M4G_01.007.01.007
OK
AT+QMBNCFG=“list”
+QMBNCFG: “List”,0,0,0,“ROW_Generic_3GPP”,0x05010824,202307171
+QMBNCFG: “List”,1,1,1,“Commercial-KDDI”,0x05010727,202203071
+QMBNCFG: “List”,2,0,0,“Commercial-SBM”,0x05011C22,202403121
+QMBNCFG: “List”,3,0,0,“Commercial-DCM_VoLTE”,0x05010D01,202211091
OK
AT+CGCONTRDP
OK
AT+CAVIMS?
+CAVIMS: 1
OK
AT+CGDCONT?
+CGDCONT: 1,“IPV4V6”,“au.au-net.ne.jp”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“ims”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 4,“IPV4V6”,“SOS”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,1
OK
Thankyou.