VoLTE calls with o2 (Germany)

After a long period of trial&error, my VoLTE with o2 (Germany) works on Mobian. And it was quite easy after all...

Here is what I did:

Disable VoLTE profile autoselection

mmcli -m any --command='AT+QMBNCFG="AutoSel",0'

Select the generic VoLTE profile

mmcli -m any --command='AT+QMBNCFG="Select","ROW_Generic_3GPP"'

Restart the modem

mmcli -m any --command='AT+CFUN=1,1'

Check the selected VoLTE profile with

mmcli -m any --command='AT+QMBNCFG="List"'

Check the VoLTE status with

mmcli -m any --command='AT+QCFG="ims"'

--> response should be
Quote:'+QCFG: "ims",1,1'

if it shows "1,0", checking and disabling the phone's "Aeroplane Mode" might help (it was magically on after the reset in my case)

Change the Network Mode in "Settings - Mobile" to "4g Only" and make a test call. It should work.


Messages In This Thread
VoLTE calls with o2 (Germany) - by arno_nuehm - 02-03-2021, 05:26 AM
RE: VoLTE calls with o2 (Germany) - by synQun - 02-03-2021, 08:35 AM
RE: VoLTE calls with o2 (Germany) - by arno_nuehm - 02-05-2021, 05:01 AM
RE: VoLTE calls with o2 (Germany) - by TRS-80 - 02-05-2021, 03:23 PM
RE: VoLTE calls with o2 (Germany) - by arno_nuehm - 03-07-2021, 11:09 AM
RE: VoLTE calls with o2 (Germany) - by asz - 06-09-2021, 10:29 AM

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