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Method for establishing a multimedia session between a caller device and a receiver device of a multimedia sub-domain type network and a communications system implementing said method

A method for establishing a multimedia session between a calling telecommunications equipment and a called equipment that is a mobile equipment of a network of the multimedia sub-domain type, wherein: an invitation (Invite) is sent from the first user equipment (UE1) to establish a multimedia session, which comprises as he destination address a public identity of the second equipment, said invitation being transmitted: by the first equipment (UE1) to a first proxy server (P-CSCF1), then, from this first proxy server, to a first session control server (S-CSCF1) of the network in which the first equipment (UE1) is registered, and from this first session server (S-CSCF1) to a point of entry server (I-CSCF2) of the network corresponding to the destination address of the second equipment (UE2); this point of entry server (I-CSCF2) interrogates a database (HSS2) of the network of the second equipment (UE2) in order to obtain the address of a session control server (S-CSF2) responsible for said second equipment (UE2); when said second equipment (UE2) is registered in said database: said point of entry server (I-CSCF2) transmits the invitation message to the selected session server (S-CSCF2), and said session server (S-CSCF2) transmits the invitation message to a proxy server (P-CSCF2) corresponding to the second equipment, wherein the proxy server (P-CSCF2) transmits this invitation message by encapsulating it in an IP packet to the second equipment via an appropriate transit node (GGSN).
Owner:FRANCE TELECOM SA

Method for inspecting hermetically sealed packages

The invention provides an efficient inspection method for inspecting a hermetically sealed package for pinholes, in which when a hermetically sealed package whose contents such as electrically conductive fluid or food are covered with an electrically insulating film is inspected for pinholes by using a high voltage, the inspection can be achieved with an extremely simple procedure while fully preventing occurrence of misoperations due to the atmosphere such as humidity during the inspection.In a hermetically sealed package in which contents 1 such as electrically conductive fluid are covered with an electrically insulating film 2, an electrical conductor 4 derived from a voltage output terminal of a DC high voltage power supply 6 is put into contact with or proximity to a side face portion 31 of the hermetically sealed package, by which the contents 1 in the hermetically sealed package 3 are electrified. Next, a lead wire 8 is connected to a connecting terminal 5a of an electrode 5 put into close contact with or opposed proximity to an inspection-object portion 3a of the package 3 where pinholes are most likely to occur, and the lead wire 8 is grounded. Then, a discharge current derived from the inspection-object portion 3a that flows only when a pinhole is present is detected by a discharge current detector 7, by which the presence or absence of a pinhole is detected depending on the presence or absence of the discharge current. In this procedure, the inspection can be made by placing the package on a support electrode derived from an AC high voltage power supply and electrifying the contents.
Owner:JOVEN ELECTRIC +1
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