Nec Corporation

Dai Nippon Printing Co., Ltd.

Yoshitaka Hamada

Atsuko Takahagi

Shin Yamada

Kozo Mita

Provided is service for transmitting and receiving a file between a calling device and a call receiving device without depending on a capacity of a proxy server. An SIP telephone set (calling device) which makes a call through a proxy serverto establish a session for a voice path with a call receiving deviceconformed to SIP, comprising a request issuing unitwhich requests the call receiving deviceto establish a session for a data path by the pressing of a specific extension at the time of establishment of a session for a voice path, a session establishing unitwhich obtains an access authentication result by the pressing of the specific extension to establish a session for a data path with the call receiving device, and a file obtaining unitwhich obtains a file managed by the call receiving devicefrom the call receiving deviceindependently of the proxy serverafter a session for a data path is established.

SIP telephone set, and file transfer system, file transfer method and file transfer program thereof

A packaging bag for microwave oven heating, is manufactured by using a complex film at least one side of which comprises a sealant layer, folding the complex film or placing the complex films one upon another so as to encounter the sealant layers to each other, sealing the peripheral of the overlapped complex films by a main seal part to form a sealed bag, and providing in the bag a region which is isolated from a space for storing contents by a steam port seal part. The steam port seal part surrounds a steam easy permeable element. The lamination strength between the layers of the complex film in hot condition is not less than 1.5 N/15 mm in width, and the seal strength at least at the steam port seal part in hot condition is not more than 28 N/15 mm in width.

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Tokyo, Japan

Yoshitaka Hamada