Native support of Avaya 1408 (1400 Mid) and 1416 (1400 High) digital telephones is available from Communication Manager 6.0 and later. Communication Manager supports call processing features for the Avaya 14xx digital telephones just like Avaya 24xx digital telephones, along with support for the following:
Fixed feature buttons (Hold, Conference, Transfer, Message waiting lamp, Drop and Redial)
Message button
40 Unicode, Eurofont, or Kanafont character display message support
Speakerphone functionality (including Group Listen)
Eight call appearances or feature buttons
Note:
To allow firmware upgrades and to use the new capabilities of the sets, the telephone type must be administered as either 1408 or 1416 digital telephone.