> There's also an ongoing lawsuit to consider -- as Ars Technica documented in 2013, Apple was forced to majorly change how FaceTime works to avoid infringing on the patents of a company called VirnetX. Instead of letting phones communicate directly with each other, Apple added "relay servers" to help the phones connect.

> Presumably, someone would have to pay for those servers, and/or figure out a way for them to talk to Google or Microsoft or other third-party servers if FaceTime were going to be truly open.