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A jump server, jump host or jump box is a system on a network used to access and manage devices in a separate security zone. A jump server is a hardened and monitored device that spans two dissimilar security zones and provides a controlled means of access between them. The most common example is managing a host in a DMZ from trusted networks ...
A message center or “message desk” was a centralized, manual answering service inside a company staffed by a few people, usually women, answering everyone's phones. Extensions that were busy or rang “no answer” would forward to the message center onto a device called a “call director”. The call director had a button for each ...
Secure messaging works as an online messaging service. Firstly, users enroll in a secure messaging platform. Then, the user logs into their account by typing in their username and password (or strong authentication) similar to a web-based email account. Out of a message center, the messages can be sent over a secure SSL-connection or via other ...
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Text messaging. A text message using SMS – the 160 character limit and difficulty of typing on feature phone keypads led to the abbreviations of "SMS language". An iMessage conversation. Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two ...
PhoneValet Message Center (or, simply, PhoneValet) is a discontinued Mac -based multi-line computer-telephony software application from Parliant Corporation. The application provided computer-telephony functionality including voicemail, call recording, and the maintenance of a call history. The system is a combination of software and hardware.
e. Frequency-hopping spread spectrum (FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying a large spectral band. The changes are controlled by a code known to both transmitter and receiver. FHSS is used to avoid interference, to prevent eavesdropping, and to enable code ...