Search results
Results From The WOW.Com Content Network
Many ringdown circuits work in both directions. In some cases a circuit is designed to work in one direction only. That is, going off-hook at one end (end A) rings the other (end B). Going off-hook at end B has no effect at end A. Ringdown features are often part of a key telephone system.
A ring generator or ringing voltage generator is a device which outputs 20 cycle sinusoidal AC at up to 110 volts peak to power bells or annunciators in one or more telephone extensions. [4] The output stops if a handset is taken off the hook. In terminology devised by phone phreaks, a ringing generator is a magenta box.
The ringer equivalence number (REN) is a telecommunications measure that represents the electrical loading effect of a telephone ringer on a telephone line.In the United States, ringer equivalence was first defined by U.S. Code of Federal Regulations, Title 47, Part 68, based on the load that a standard Bell System model 500 telephone represented, and was later determined in accordance with ...
A Nokia 5800 showing its modes, including silent mode. Silent mode is a setting available on mobile phones and pagers that, when activated, disables the ringtones and, in some cases, also the vibrating alerts or alarm.
Batterygate [1] [2] [3] is a term used to describe deliberate processor slowdowns on Apple's iPhones, in order to prevent handsets with degraded batteries shutting down when under high load. Critics argued the slowdown amounted to planned obsolescence. However, this may stem from the common misconception that all older iPhones were slowed down.
These include a sealed body that does not allow replacing the battery, a lack of the physical audio connector (since the iPhone 7 from 2016), a screen with a cut-out area at the top for the earphone and front-facing camera and sensors (colloquially known as "notch"; since the iPhone X from 2017), the exclusion of a charging wall adapter from ...
The iPhone 4s features a 3.5 in (89 millimetres) 960 by 640 pixel multitouch Retina display. It has two volume buttons and a ring-silent switch on the left side. [18] On the top left there is a 3.5 mm headphone jack and a microphone that is used for both noise cancellation during calls and when in speakerphone/FaceTime (video calling) mode.
The ringer keeps hold of the tail-end of the rope to control the bell. After a controlled pause with the bell, on or close to its balancing point, the ringer rings the backstroke by pulling the tail-end, causing the bell to swing back towards its starting position.