Title: Voip

Essay Details

Subject: Technology
Date: December 30, 2012
Level: University
Grade: A
Length: 14 / 4119
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

Signaling intelligence transmitted over subscriber loops is further subdivided into three primary categories. They are: ? Information Signals ? Information signals are audible tones within the voice frequency range. They communicate to the subscriber or operator, intelligence relative to the status of a call...

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They communicate to the subscriber or operator, intelligence relative to the status of a call. This includes informing the subscriber that dialing may begin (dial tone), alerting the far-end subscriber of an incoming call (ringing), conveying to the call originator that the far-end subscriber is being called (ring-back tone) or that the subscriber line is in use (busy tone), and indicating to the originator that all switching paths or toll trunks are busy (reorder tone)...

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