Chats without memberships
Like on PS3, Instant Game Collection on PS4 gives those who subscribe to Plus free content.It's access to, in Sony's words, "a regular, curated selection of titles made exclusively available to Play Station Plus members at no additional cost".
However, Plus, which costs 40 for 12 months, gives you much more than that.
In order to decline the invitation, the invitee MUST send a message of the following form to the It may be wondered why the invitee does not send the decline message directly to the inviter.
The invitee MAY choose to formally decline (as opposed to ignore) the invitation; and this is something that the sender might want to be informed about.
NOTICE: The protocol defined herein is a Draft Standard of the XMPP Standards Foundation. element's 'thread' attribute, and include the Thread ID in any new messages sent to the room.
Implementations are encouraged and the protocol is appropriate for deployment in production systems, but some changes to the protocol are possible before it becomes a Final Standard.1. Use of Thread IDs is RECOMMENDED because it helps to provide continuity between the one-to-one chat and the multi-user chat. Continuing the Discussion I: User Creates Room protocol enables the room creator to specify the datetime of each message from the one-to-one chat history (via the 'stamp' attribute), as well as the JID of the original sender of each message (via the 'from' attribute); note well that the 'from' here is not the room itself, since the originator of the message is the delaying party.