Busy tone
Set of tones played when the receiving end is busy.
Call waiting tone Set of tones played when there is a call waiting in the background.
Congestion tone Set of tones played when there is some congestion.
Dial recall tone
Many phone systems play a recall dial tone after hook flash.
Record tone
Set of tones played when call recording is in progress.
Info tone
Set of tones played with special information messages (e.g., number is out of service.)
Figure 3-4-1 FXO settings
Содержание XT-400FXO
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