Enable VoLTE call wit EC21 in Belgium

IoT Modules LTE Standard Module
1

Hello,

How can I activate VoLTE call with EC21 ?

I’m with version :
VERSION: EC21EFAR06A07M4G
Dec 2 2022 19:29:02
Authors: QCT

AT+QMGR
EC21EFAR06A07M4G_20.200.20.200

And IMS give me that results :

AT+QCFG=“ims”
+QCFG: “ims”,0,0

AT+QCFG=“ims”,1,1
ERROR

AT+QCFG=“ims”,1
OK

Here’s some results of AT commands

AT+COPS?
+COPS: 0,0,“Proximus”,7

AT+QENG=“servingcell”
+QENG: “servingcell”,“NOCONN”,“LTE”,“FDD”,206,01,61B708E,139,2850,7,5,5,105D,-79,-14,-45,13,40

Thanks for your help

2

AT+QCFG=“ims”,1,1 → ERROR

AT+QCFG=“ims”,1 → OK

AT+QCFG=“ims”?
+QCFG: “ims”,1,0

AT+QMBNCFG=“Select”,“ROW_Generic_3GPP”

AT+CFUN=1,1 // reboot modem

AT+QCFG=“ims”?
+QCFG: “ims”,1,1

VoLTE call OK