stich86 I already did those so I suspect it's something else 🤔
I ran:
adb shell
cfg set voice_work_type=VOICE
cfg save
mount -o remount,rw /usr/zte_web
sed -i 's/VOIP/VOICE/g' /usr/zte_web/web/copy/custom_parameter
then I copied these to the data folder via efs Explorer
and then I ran these:
AT+CGDCONT=2,"IPV4V6","ims"
AT+CGDCONT=3,"IPV4V6","sos"
AT$QCPDPIMSCFGE=2,1
AT$QCPDPIMSCFGE=3,1
on Tera term
every command had ok output
verifying apn and ims configuration had a slightly different output like 1 additional line
Verifying the IMS APN via Tera Term on pc only showed OK
with no numbers or IPs so I assume it wasn't connected (rebooting the modem did no difference on the outputs whatsoever)
EDIT: maybe it was due to weak signal? because after connecting everything back (obviously the antennas help) it reports this on openwrt