Features
- Adds 24 additional programmable call appearance/feature buttons to the 6416D+, 6416D+M, 6424D+, or 6424D+M digital telephone
Requirements
The XM24 Expansion Module requires an 1151A1 or 1151B1 auxiliary power supply to function.
Includes

Refurbished
Library
Avaya XM24 24 Button Expansion Module Installation Instructions.pdf

