Avaya 555-233-116 Busy tone disconnect equipment for non-U.S. installations

Issue 4 October 2002 171555-233-116
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Busy tone disconnect equipment for
non-U.S. installations
The customer-provided busy tone disconnect adjunct detects disconnects of
incoming calls on loop-start, 2-wire, analog trunk s. In some countries outside the
United States, the PSTN sends tones in the voice ba nd instead of line disconnect
signals. Figure 39 shows typical connecti ons.
NOTE:
The busy tone disconnect feature is not currently supported on a
G700 Media Gateway.
Figure 39. Typical cabling for busy tone disconnect
1. Publi c switched telephone network
2. Main distribution frame
3. Busy tone disconnect device
4. Tip and ring wires
5. To loop-start, central-office, trunk
circuit pack such as a TN747B
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