Telenetics Modular Nest Countries That Support Busy Out, How and When is Make Busy Activated?

	Part No. TEL–09949, Rev A
Pre-Installation Information and Activities	June 2001
	Page 8 of 34

Countries That Support Busy Out

Some backplanes have a Busy Out feature and are intended for use with dial modems (models 3262 and 3267). In some countries, leased modems (models 3263 and 3268) use Busy Out for dial restoral. The following table shows which countries use the Busy Out feature.

Countries that Support the Busy Out Option

Country	3262 and	3263 and
	3267	3268
Australia	Yes	Yes
Belgium	Yes	Yes
Canada	Yes	No
Denmark	Yes	Yes
Hong Kong	Yes	No*
Ireland	Yes	Yes
Sweden	Yes	Yes
Switzerland	Yes	Yes
United Kingdom	Yes	Yes*
United States	Yes	Yes
All Others	No	Yes

How and When is Make Busy Activated?

Make Busy versions of Modular Nest 9 and Modular Nest 21 backplanes (which install in a Modular Nest enclosure with card modems) come equipped with the Busy Out feature. This feature causes a Busy Out modem to “appear busy” to the central office when:

•Power is disconnected from the Modular Nest enclosure

•The modem card is not present in its slot

•Busy Out=ON (the option is set through the front panel menu, the AT ACU, or a network manager)

Busy Out is intended for use with Model 3262 and 3267 dial modems. In some countries, it is also used in dial-restoral mode on Model 3263 and 3268 leased line modems.