Methods and apparatus to route fax calls in an internet protocol (IP) multimedia subsystem (IMS) network
First Claim
Patent Images
1. A method comprising:
- receiving a message at a processor of an Internet protocol (IP) multimedia subsystem (IMS) network, the message comprising a called party number and a media description;
determining, with the processor, if the media description is associated with a fax protocol; and
when the media description is associated with the fax protocol, attempting to locate a fax-specific uniform resource identifier (URI) associated with the called party number.
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Abstract
Methods and apparatus to route fax calls in an Internet protocol (IP) multimedia subsystem (IMS) network are disclosed. An example method comprises receiving a message including a called party number and a media description at an IMS network and determining if the media description is associated with a fax protocol. Additionally, when the media description is associated with a fax protocol, the example method attempts to locate a fax-specific uniform resource identifier (URI) associated with the called party number.
45 Citations
24 Claims
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1. A method comprising:
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receiving a message at a processor of an Internet protocol (IP) multimedia subsystem (IMS) network, the message comprising a called party number and a media description; determining, with the processor, if the media description is associated with a fax protocol; and when the media description is associated with the fax protocol, attempting to locate a fax-specific uniform resource identifier (URI) associated with the called party number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An Internet protocol (IP) multimedia subsystem (IMS) fax server comprising:
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a session initiation protocol (SIP) parser to parse a received call for at least one fax identifier; a session description protocol (SDP) flag library, the SIP parser to extract at least one SDP flag from the received call associated with the SDP flag library; a query engine to attempt to locate a fax-specific uniform resource identifier (URI) associated with the fax identifier; and a fax director to route the received call to the fax-specific URI. - View Dependent Claims (14, 15, 16)
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17. An Internet protocol (IP) multimedia subsystem (IMS) fax server, comprising:
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a session initiation protocol (SIP) parser to parse a received call for at least one fax identifier; a query engine to attempt to locate a fax-specific uniform resource identifier (URI) associated with the fax identifier, wherein the query engine comprises a home subscriber server (HSS) querier to query an HSS for a subscriber profile associated with the at least one fax identifier; and a fax director to route the received call to the fax-specific URI. - View Dependent Claims (18, 19, 20, 21)
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22. A tangible article of manufacture storing machine readable instructions which, when executed, cause a machine to, at least:
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determine if a media description in a message comprising a called party number and the media description is associated with a fax protocol; and when the media description is associated with the fax protocol, attempt to locate a fax-specific uniform resource identifier (URI) associated with the called party number. - View Dependent Claims (23, 24)
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Specification