Add mobile call data usage option

[MichaelMcDonnell]

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• I am following the Code Style Guidelines
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• Motorola G7, Android 10
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Description

This change adds an option to restrict calls from using mobile data. My wife
experienced a video call using 750 MB of data even though she was on WiFI. It
needs to be controllable in case you are on a metered plan since it might
otherwise make the call very expensive. My wife almost uninstalled Signal
because of this, but I got her to stay by promising I would fix it.

This change depends on my changes made to RingRTC (see signalapp/ringrtc#26). You need to make sure you have the right version of RingRTC. This fixes #8529

[MichaelMcDonnell]

The build failure is expected. It depends on RingRTC being updated. It should pass after that.

[hyakujon]

This ought to have been sorted when first reported. We also had our whole month's data used up on one video call despite our WiFi being on, 2m away, with a full strength connection and Video unchecked in Signal's mobile data settings. We're uninstalling Signal.

[stale]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[MichaelMcDonnell]

To stalebot, I believe it is still relevant but the team at Signal have not had the time to thoroughly evaluate this change yet. That's at least what I've last heard.

[stale]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[stale]

This issue has been closed due to inactivity.

[KiaraGrouwstra]

reopen