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Issue 4 October 2002 171555-233-116
12
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 trunks. In some countries outside the
United States, the PSTN sends tones in the voice band instead of line disconnect
signals. Figure 39 shows typical connections.
NOTE:
The busy tone disconnect feature is not currently supported on a
G700 Media Gateway.
Figure 39. Typical cabling for busy tone disconnect
1. Public 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
cydf057 RPY123097
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