
Installing IP500/IP500 V2 Page 365
15-601042 Issue 28g (11 October 2013)IP Office 9.0
System Components: Phone Add-Ons
10.12.9 T3 DSS
The maximum number of button module buttons supported, of any type, on a single system is 1024 .
The T3 DSS provides an additional 36 programmable keys for phones in the supported T3 series. The T3 DSS is moulded
and designed to be attached to the associated phone. Signalling is achieved by cable connection to the Link port on the
T3 phone. A further two T3 DSS units can be chained from the first T3 DSS. For additional limitations see Phone Add-Ons
.
T3 Compact, T3 Classic, T3 Comfort
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