Internet protocol multimedia subsystem component providing of packet-switched switching functions to serving mobile switching center feature server
First Claim
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1. An apparatus, comprising:
- a serving mobile switching center feature server that translates between a call control message originated by or terminated to a mobile telephone and an internet protocol based procedure message; and
an internet protocol multimedia subsystem component that serves to propagate the internet protocol based procedure message;
wherein the internet protocol multimedia subsystem component provides packet-switched switching functions to the serving mobile switching center feature server based on the internet protocol based procedure message;
wherein the call control message comprises a call setup message to initiate a call, wherein the mobile telephone sends the call setup message to the serving mobile switching center feature server on a signaling path;
wherein the serving mobile switching center feature server supports a media path to carry a communication associated with the call;
a media coordinator, wherein the serving mobile switching center feature server sends the internet protocol based procedure message to the media coordinator;
wherein the media coordinator determines based on the internet protocol based procedure message whether the communication on the media path requires translation;
wherein the internet protocol multimedia subsystem component comprises a break out gateway control function;
wherein the media coordinator sends the internet protocol based procedure message to the break out gateway control function;
wherein the internet protocol based procedure message comprises a telephone number of a recipient of the call, wherein the break out gateway control function converts the telephone number of the recipient to connection information of an address to send the internet protocol based procedure message;
a gateway mobile switching center feature server, wherein the gateway mobile switching center feature server contacts a home location register to retrieve a temporary local directory number of the recipient of the call;
wherein the internet protocol multimedia subsystem component comprises a media gateway control function that translates between a call control message originated by or terminated to a public switched telephone network and the internet protocol based procedure message;
wherein the break out gateway control function comprises a first break out gateway control function, wherein based on the connection information of the address the first break out gateway control function sends the internet protcol based procedure message to any of a second break out gateway control function, an instance of the media gateway control function, and an instance of the gateway mobile switching center feature server.
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Abstract
An apparatus in one example comprises a serving mobile switching center feature server and one or more internet protocol multimedia subsystem components. The serving mobile switching center feature server translates between a call control message originated by or terminated to a mobile telephone and an internet protocol based procedure message. The one or more internet protocol multimedia subsystem components serve to propagate the internet protocol based procedure message. The one or more internet protocol multimedia subsystem components provide packet-switched switching functions to the serving mobile switching center feature server based on the internet protocol based procedure message.
122 Citations
16 Claims
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1. An apparatus, comprising:
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a serving mobile switching center feature server that translates between a call control message originated by or terminated to a mobile telephone and an internet protocol based procedure message; and an internet protocol multimedia subsystem component that serves to propagate the internet protocol based procedure message; wherein the internet protocol multimedia subsystem component provides packet-switched switching functions to the serving mobile switching center feature server based on the internet protocol based procedure message; wherein the call control message comprises a call setup message to initiate a call, wherein the mobile telephone sends the call setup message to the serving mobile switching center feature server on a signaling path; wherein the serving mobile switching center feature server supports a media path to carry a communication associated with the call; a media coordinator, wherein the serving mobile switching center feature server sends the internet protocol based procedure message to the media coordinator; wherein the media coordinator determines based on the internet protocol based procedure message whether the communication on the media path requires translation; wherein the internet protocol multimedia subsystem component comprises a break out gateway control function; wherein the media coordinator sends the internet protocol based procedure message to the break out gateway control function; wherein the internet protocol based procedure message comprises a telephone number of a recipient of the call, wherein the break out gateway control function converts the telephone number of the recipient to connection information of an address to send the internet protocol based procedure message; a gateway mobile switching center feature server, wherein the gateway mobile switching center feature server contacts a home location register to retrieve a temporary local directory number of the recipient of the call; wherein the internet protocol multimedia subsystem component comprises a media gateway control function that translates between a call control message originated by or terminated to a public switched telephone network and the internet protocol based procedure message; wherein the break out gateway control function comprises a first break out gateway control function, wherein based on the connection information of the address the first break out gateway control function sends the internet protcol based procedure message to any of a second break out gateway control function, an instance of the media gateway control function, and an instance of the gateway mobile switching center feature server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method, comprising the steps of:
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selecting a mobile switching center that comprises mobile switching center feature services and circuit-switched switching services; replacing a portion of the circuit-switched switching functions with one or more internet protocol multimedia subsystem components that support packet-switched switching functions; employing internet protocol based procedure messages to communicatively couple the one or more internet protocol multimedia subsystem components with the mobile switching center feature services employing a call control message that includes a call setup message to initiate a call, transmitting the call setup message from a mobile telephone to a serving mobile switching center feature server on a signaling path; the serving mobile switching center feature server supports a media path to carry a communication associated with the call; the serving mobile switching center feature server sending the internet protocol based procedure message to a media coordinator that determines based on the internet protocol based procedure message whether the communication on the media path requires translation; the internet protocol multimedia subsystem components comprising a break out gateway control function where the internet protocol based procedure message is sent to the break out gateway control function; the internet protocol based procedure message comprising a telephone number of a recipient of the call, wherein the break out gateway control function converts the telephone number of the recipient to connection information of an address to send the internet protocol based procedure message; contacting a home location register by a gateway mobile switching center feature server to retrieve a temporary local directory number of the recipient of the call; translating between a call control message originated by or terminated to a public switched telephone network and the internet protocol based procedure message by a media gateway control function implemented by the internet protocol multimedia subsystem components; the break out gateway control function comprising a first break out gateway control function, wherein based on the connection information of the address the first break out gateway control function sends the internet protocol based procedure message to any of a second break out gateway control function, an instance of the media gateway control function, and an instance of the gateway mobile switching center feature server. - View Dependent Claims (15, 16)
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Specification