| 摘要 |
PURPOSE:To inform the absence of a called party immediately to a caller by allowing a mail communication terminal equipment to register the absence to a center equipment and to send the absence notice thereto. CONSTITUTION:A mail service identifier 30 represents the content of the service. Mail service additional information 31 is information for confirming and designating time designation or the like. Mail caller information 32 is required for a recipient to identify a caller. A mail call time 33 sends a mail and informs a time to the recipient. When a mail cannot be delivered from the center equipment to a reception terminal equipment due to a fault of the reception terminal equipment and the center equipment keeps the mail. When the recipient accesses the center equipment to receive the mail, the recipient can recognize when the mail is delivered. Mail recipient information 34 is information required when the center equipment designates a delivery destination and information to deliver the mail surely to the recipient. Mail delivery time information 35 informs a time when the mail is received to the recipient.
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