Avaya 555-233-116 manual Busy tone disconnect equipment for Non-U.S. installations12

Busy tone disconnect equipment for

non-U.S. installations12

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.

1

			3			5
	2			2
		4			4	4
						cydf057 RPY 123097
1.	Public switched telephone network		4.	Tip and ring wires
2.	Main distribution frame		5.	To loop-start, central-office, trunk
3.	Busy tone disconnect device			circuit pack such as a TN747B

Figure 39. Typical cabling for busy tone disconnect

555-233-116 Issue 4 October 2002 171