I want to implement this solution.
But I don't want to use a commercial 3rd-party SDK, e.g. Ozaki VoIP SDK.
Is it possible? Is there any open-source alternative?
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I want to implement this solution.
But I don't want to use a commercial 3rd-party SDK, e.g. Ozaki VoIP SDK.
Is it possible? Is there any open-source alternative?