Avaya IP Office 8.1 Product Description page 145

T3 DSS Expansion Modules
The T3 DSS Module is a phone expansion module that is compatible with all T3 UPN and T3 IP Telephones
except the T3 IP Compact. Each module provides an additional 36 programmable buttons with associated
printed text labels and indicators, and can be programmed for lines, groups or speed dial numbers. 3 DSS
Modules can be added to each T3 phone. Power is provided by T3 UPN telephones, but an external power
adapter is needed for each DSS module when used on T3 IP telephones.
Please refer to
Product Description
IP Office 8.1
System Button Module Support
© 2012 AVAYA All rights reserved.
for the total system limitations of button modules on IP Office.
Page 145
Issue 26.k.- (16 August 2012)