Method and system for message routing in IMS and circuit switched networks
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRogier August Caspar Joseph Noldus, Nancy Margaret Greene
Life of this patent
Estimating the term…
Abstract
Method and gateway unit for registering a user terminal (34) of a multimedia subscriber being a subscriber of a circuit switched network (32), in an IP multimedia system (IMS) network (31). Registration in the IMS network (31) of a first contact address associated with a circuit switched communication capability of the user terminal (34) for regular communication purposes is used, as well as registration in the IMS network (31) of a second contact address associated with a circuit switched communication capability of the user terminal (34) for messaging purposes.
Claims14
A method, comprising:
- transmitting or receiving a text message originating from a user terminal associated with an IP multimedia system (IMS) subscriber;
- wherein the IMS subscriber is registered in an IMS network by registering in the IMS network a first contact address of the user terminal associated with a circuit switched communication capability of the user terminal for regular communication purposes including for voice calls, and
- registering in the IMS network a second contact address of the user terminal associated with the circuit switched communication capability of the user terminal for messaging purposes,
- wherein a mobile switching center (MSC) receiving an originating text message from the IMS subscriber comprises session initiation protocol (SIP) signaling capability, and the IMS subscriber is registered in the circuit switched network as a multimedia subscriber, the method further comprising:
- converting the text message into a SIP message, and
- delivering the SIP message to a serving call session control function (S-CSCF) associated with the IMS subscriber.
Apparatus comprising:
- a processor configured to communicate with a circuit switched network and with an IP multimedia system (IMS) network,
- the processor being further configured to transmit or receive a text message originating from an IMS subscriber,
- wherein the IMS subscriber is registerable in the IMS network by registering a subscriber's user terminal in the IMS network, where the subscriber subscribes to the IMS network and to the circuit switched network, using registration in the IMS network of a first contact address of the user terminal associated with a circuit switched communication capability of the user terminal for regular communication purposes including for voice calls, and using registration in the IMS network of a second contact address of the user terminal associated with a circuit switched communication capability of the user terminal for messaging purposes,
- wherein the processor is further configured to receive an originating text message from the IMS subscriber and has session initiation protocol (SIP) signaling capability, the IMS subscriber being registered in the circuit switched network as a multimedia subscriber, convert the text message into a SIP message, and deliver the SIP message to a serving call session control function (S-CSCF) associated with the IMS subscriber.
Dependencies are inferred from the claim text.