Patent ID: 8099510
Filing Date: 2012-01-17
Classification: H04L

Abstract:
1. A relay device that relays communication between a communication terminal and a communication server, the relay device comprising: a terminal information storage part that stores information of an alternative protocol which can be used by the communication terminal, where the alternative protocol is stored in association with a terminal ID for uniquely identifying the communication terminal; a data storage part that stores a response from the communication server; a control part that performs, if a communication via a normal protocol with a communication terminal as a destination of the response is disconnected, a processing to change protocols, which processing extracts protocol information of the alternative protocol associated with the ID of the communication terminal from the terminal information storage part, and sends the response by using the protocol information thus extracted, to the communication terminal as the destination; and when a predetermined character string exists in a request from the communication terminal to the communication server, the control part controls a processing of sending, to the communication terminal, a message that changes a time-out period for a session from the communication terminal to the communication server.