Stereo System User Manual
DEFINITY AUDIX System Release 4.0
System Description Pocket Reference 
585-300-214 
Issue 1
May 1999
Features and Compatibility 
1-6
Compatibility 
Operating in non-native mode does not affect subscribers’ or outside 
callers’ use of the system. System administrators, however, should be 
aware that messages from the switch, such as alarms, that refer to a 
TN754 or a TN2181 circuit pack the system is emulating may actually 
refer to the DEFINITY AUDIX system.
NOTE:
Lucent Technologies strongly recommends that the DEFINITY 
AUDIX system emulates a TN2181 digital port circuit pack in 
switch versions 2 and later. A TN2181 emulation supports a 
maximum of 12 voice ports, while a TN754 emulation only 
supports a maximum of 8 voice ports. If the DEFINITY AUDIX 
system emulates a TN2181 circuit pack, system expansion may be 
easier. Switch versions earlier than 2 do not support TN2181 
circuit pack emulation.
Ta b l e  1 - 2
 shows which switches and switch software releases support 
the DEFINITY AUDIX system and whether or not they support the system 
in native mode. For more information about the TN568 circuit pack or the 
system’s operations native and non-native mode, see Chapter 2
. For 
more information about Alarm Origination and the DEFINITY AUDIX 
system’s interactions with the switch, see Chapter 3
.










