OfflineMessaging Application¶

• Add failure routed to OpenSIPS for chat sessions requests to SylkServer with X-application offline-storage
• SylkServer answer the session in behalf of the called user
• SylkServer sends an automatic answer with 'I am offline but you an type a message'
• Session is kept open for 60 seconds so that remote party has chance to write something if he did not already after connect
• Session is closed and saved to local history database
• SylkServer detect when targeted user comes online (find a mechanism)
• Establish a new session to the user that came online and fake the original caller, deliver the stored messages, hangup and wipe delivered messages