I tested SXMO and PMOS this week. No ringtone for incoming calls at all.
Ubuntu Touch shows the same behaviour like described for AVMultiphone, no ringtone after a while.
Here an text concerning the same problem:
https://gitlab.com/mobian1/issues/-/issues/69
Ubuntu Touch shows the same behaviour like described for AVMultiphone, no ringtone after a while.
Here an text concerning the same problem:
https://gitlab.com/mobian1/issues/-/issues/69