Dear all,
I'm trying to switch from iOS to GrapheneOS permanently. We are using the VOIP-App SWYX Mobile for our VOIP-PBX SWYX. Installation via Aurora Store and configuration was successfull. It is possible to coonect the SWYX Mobile App to the VOIP-PBX SWYX. However, unfortunately, the SWYX Mobile app does not work properly. So far, I have noticed the following:
(1) You cannot make outgoing calls with the SWYX Mobile app.
(2) Incoming calls are not reliably signaled. Incoming calls are not signaled at all. No ring tone, etc.
Unfortunately, I'm not really familiar with GraphenesOS. Is this a permission issue? For testing purposes, I have already granted the app the following permissions: notifications, microphone, Music and Audio, network, sensors, telephone, etc. Where should I look for errors?
Many thanks in advance for your help.