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● aria 20 SERIES DIGITAL KEY TELEPHONE SYSTEM USER GUIDE:
aria 20A, aria 20, aria 20W
1
aria 20 KSU
aria 20
aria
aria
20/
20/
20
20
A
A
/ 20W
/ 20W
/ 16/ 16A each have a similar
/ 16/ 16A each have a similar
Key
Key
-
-
Telephone Service Unit Housing.
Telephone Service Unit Housing.
NB: Although every effort is made to keep this Guide up to date, Features and Functions are subject to change without
notice. An inclusion of a feature or function in this guide does not imply it is operational on your system. Some features
require specific hardware or software installation. Please check with your
aria dealer for further details.