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The 2600 Hz tone might be present if the caller were whistling into the telephone microphone while waiting for the called party to answer. Upon detecting the tone from the caller's end, the receiving signaling unit sent an on hook status to the connected equipment, which disconnected the call from that point forward, as if the caller had hung up.
The following is a list of Mac software – notable computer applications for current macOS operating systems. For software designed for the Classic Mac OS , see List of old Macintosh software . Audio software
It could run on a Mac or a Windows PC with an optical drive. A client MacBook Air (lacking an optical drive) could then wirelessly connect to the other Mac or PC to perform system software installs. Remote Install Mac OS X was released as part of Mac OS X 10.5.2 on February 12, 2008. Support for the Mac mini was added in March 2009, allowing ...
The tone is typically a single, short burst (e.g. 440 hertz for 5 milliseconds) but can also be customized with multiple bursts or tones to hint at the nature of the call, so the agent can answer the call with the appropriate greeting; or a subscriber may know that a specific caller is calling or number was dialed (see distinctive ring). [3]
Steve Jobs introduced the MacBook Air during Apple’s keynote address at the 2008 Macworld conference on January 15, 2008. [4] The first MacBook Air was a 13.3-inch model, initially promoted as the world's thinnest notebook at 1.9 cm (0.75 in) (a previous record holder, 2005's Toshiba Portege R200, was 1.98 cm (0.78 in) high).
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As part of the Mac transition to Intel processors, Apple released a 13-inch laptop simply named "MacBook", as a successor to the PowerPC-based iBook series of laptops. . During its existence, it was the most affordable Mac, serving as the entry-level laptop that was less expensive than the rest of the Mac laptop lineup (the MacBook Pro portable workstation, and later the MacBook Air ultra-port
Ringing tone (audible ringing, also ringback tone) is a signaling tone in telecommunication that is heard by the originator of a telephone call while the destination terminal is alerting the receiving party. The tone is typically a repeated cadence similar to a traditional power ringing signal (ringtone), but is