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The ability to recall or unsend an email is not available in AOL Mail, because we provide a web-based service which sends messages instantly and once you send an email message, it's gone from your email server and out of our control. If you're unsure about sending an email, save the message to think things over, then send it later.
Hook flash. On analog telephone lines with special services, a flash or register-recall signal is used to control functions on the public telephone exchange, PBX or VoIP ATA . The term "register-recall" in Europe refers to sending a discrete signal to alert the "register" — the logical system controlling a telephone exchange, that it should ...
Call waiting is a telephone service where a subscriber can accept a second incoming telephone call by placing an in-progress call on hold —and may also switch between calls. With some providers it can be combined with additional features such as conferencing, call forwarding, and caller ID. Call waiting is intended to alleviate the need to ...
Message authentication code. In cryptography, a message authentication code ( MAC ), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity -checking a message. In other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed (its integrity).
April 10, 2024 at 9:16 AM. MADISON, Wis. (AP) — The effort by supporters of former President Donald Trump to recall Wisconsin's top elected Republican did not gather enough signatures to trigger ...
Free recall. Free recall is a common task in the psychological study of memory. In this task, participants study a list of items on each trial, and then are prompted to recall the items in any order. [1] Items are usually presented one at a time for a short duration, and can be any of a number of nameable materials, although traditionally ...
In computer networking, Point-to-Point Protocol ( PPP) is a data link layer (layer 2) communication protocol between two routers directly without any host or any other networking in between. It can provide loop detection, authentication, transmission encryption, [1] and data compression . PPP is used over many types of physical networks ...
Documentary collection. A documentary collection is a process in which a seller instructs their bank to forward documents related to the export of goods to a buyer 's bank with a request to present these documents to the buyer for payment, indicating when and on what conditions these documents can be released to the buyer. [1]