Method, system and apparatus for message interworking

A Session Initiation Protocol (SIP) messaging server, comprising:

• a transceiving module configured to receive an SIP message from a sender terminal, to route the SIP message to a recipient, and to receive an SIP response to the SIP message;
• a confirming module configured to determine based on the SIP response received by the transceiving module whether interworking is required,
• the confirming module is further configured to determine, according to forwarding information preset in the SIP messaging server, that message interworking is required when the SIP response is a failure response indicating that a target network of the recipient does not support the SIP message;
• and
• an interworking module configured to forward the SIP message to an interworking gateway when the confirming module determines that the message interworking is required,
• wherein the interworking gateway is configured to:
• select, with respect to the SIP message, a recipient terminal service,
• perform a protocol conversion on the SIP message, based on the selected recipient terminal service, to render a non-SIP message, and
• send the non-SIP message to the non-SIP messaging system corresponding to the selected recipient terminal service.

A method for message interworking, comprising:

• receiving, by a Session Initiation Protocol (SIP) messaging server, an SIP message from a sender terminal, and routing the SIP message to a recipient;
• receiving, by the SIP messaging server, an SIP response to the SIP message;
• determining, by the SIP messaging server according to forwarding information preset in the SIP messaging server, that the message interworking is required when the SIP response is a failure response indicating that a target network of the recipient does not support the SIP message;
• sending, by the SIP messaging server, the SIP message to an interworking gateway;
• and
• establishing, by the interworking gateway, a session between the interworking gateway itself and a sender terminal based on the SIP message, receiving an SIP session message via the established session, performing a protocol conversion on the SIP session message and then sending the converted non-SIP message to a corresponding non-SIP messaging system in the target network, wherein the step of establishing further comprises:
• selecting, by the interworking gateway, a recipient terminal service;
• and
• determining an interworking type based on the selected recipient terminal service.

An interworking gateway, comprising:

• a receiving module, a recipient service information obtaining module, a selecting module, a converting module, and a forwarding module, wherein,
• the receiving module is configured to receive a Session Initiation Protocol (SIP) message from a SIP messaging server, and wherein the SIP message is sent from the SIP messaging server after determining, by the SIP messaging server according to forwarding information preset in the SIP messaging server, that message interworking is required when the SIP response is a failure response indicating that a target network of the recipient does not support the SIP message;
• the recipient service information obtaining module is configured to obtain service information of a recipient terminal from a network address book, or from a Telephone Number Mapping (ENUM) Domain Name System server, or from a recipient network device;
• the selecting module is configured to select one service from the service information of the recipient terminal obtained by the recipient service information obtaining module;
• the converting module is configured to perform a protocol conversion on the SIP message to convert the SIP message into a non-SIP message corresponding to the one service selected by the selecting module;
• and
• the forwarding module is configured to send the non-SIP message converted by the converting module.