Absence of ringing tone
Summary
Since /e/ OS 1.5.1 on FP4 I experience the absence of the ringing tone on some outgoing calls either to a landline or a mobile network. I have neither switched the mobile provider nor the SIM card. Despite it is quite strange to not hear the ringing tone but suddenly the person I have called I prioritize as S4 because dialing and calling is working.
Diagnosis
Components affected
FP4 since /e/ OS 1.5.1
Priority
S4 - low
Has it happened before?
https://community.e.foundation/t/absence-of-a-dial-tone/19805
Solutions
Nothing I know of.
Possible fixes
Nothing I know of.