Busy Tone Disconnect Equipment For Non-U.s. Installations - Lucent Technologies DEFINITY Installation For Adjuncts And Peripherals

DEFINITY ECS Release 8.2
Installation for Adjuncts and Peripherals 555-233-116
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Busy Tone Disconnect Equipment for Non-U.S. Installations

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 44
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1. Public switched telephone network
2. Main distribution frame
3. Busy tone disconnect device
Figure 44. Typical Cabling for Busy Tone Disconnect
shows typical connections.
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4
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3
2
4
4. Tip and ring wires
5. To loop-start, central-office, trunk
circuit pack such as a TN747B
Issue 1
April 2000
143
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cydf057 RPY 123097