OfflineMessaging Application¶

• Add failure routed to OpenSIPS for chat sessions request to SylkServer with X-application offline-storage
• SylkServer answer sessions
• SylkServer sends automatic answer with standard 'I am offline but you an type a message'
• Keep session open for 60 seconds so that remote party has chance to write something if he did not already after connect
• Close session and save history
• Detect when targeted user comes online or poll
• Establish a new session to the user that came online and fake the original caller, deliver the stored messages, hangup and wipe delivered messages