Curious if anyone is aware of technology that can fill the role of signaling without having a persistent connection to every device (i.e. an open socket).
Better yet, is anyone aware of any apps that actively do this today?
Thanks!
Some signalling (chat) protocols like XMPP have transports like BOSH that are non-persistent in the sense that they use HTTP long polling.
If you want to get even less persistent the typical approach is to use push notifications to summon the user and then answer the call once the user establishes a more persistent connection in response to the push