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Hi -I'm currently playing with websocket on ios.Is there any way to keep websocket connections when the app is in the background or the phone is locked ?I saw lots of tricky things like enable audio mode background or voip. Is it right with the ios guidelines ? even if my application is not an audio app..Besides, I need to get remote notifications in realtime time. Actually, it depends on the traffic and sometimes, I get a delay of 4-10seconds. No way to avoid this delay?Thanks.