The mention of Voxer is interesting. https://techcrunch.com/2022/09/22/meta-pay-walkie-talkie-app-maker-voxer-175m-patent-infringement/ https://techcrunch.com/

The mention of Voxer is interesting. https://techcrunch.com/2022/09/22/meta-pay-walkie-talkie-app-maker-voxer-175m-patent-infringement/ https://techcrunch.com/2022/09/22/meta-pay-walkie-talkie-app... https://www.reuters.com/technology/meta-loses-bid-toss-175-mln-verdict-streaming-patent-case-2023-02-22/ https://www.reuters.com/technology/meta-loses-bid-toss-175-m...