[Feature request] Add an option to mute SIT tones
I guess that the different handling of SIT tones by phone carriers make it not easy to find a good solution, but one year has already passed and the loud error tones has not been addressed yet.
So, as a kind of workaround, I think that allowing the option of "muting SIT tones" (on the phone tab, for instance), and just leaving the "Network error" message on the screen, can be a simple way to manage this problem.
It is quite disturbing when, while silently holding a incoming call as ignored, the speaker loudly plays these tones at the end of the call. Yeah, it could be a carrier's fault to behave that way, but let's provide a better procedure.