Avaya Definity XM24 Expansion Module (Grey/Refurbished) Modules & Cards Four function levels give you

Four function levels give you 192 possible feature activations or speed dials in addition to tri-color status LEDs

Caller can choose between two languages

1 or higher

2 row x 20 character LCD display

24 Programmable Feature Keys

Avaya Definity XM24 Expansion Module (Grey/Refurbished) Modules & Cards Four function levels give youThe Avaya XM24 is an expansion module that provides 24 additional programmable feature buttons for your Avaya 6400 series digital phone. Key Features: Expansion Module 24 Programmable Feature Keys Requires Avaya 1151 Series Power Supply Compatibility: Avaya 6416D+ Avaya 6416D+M Avaya 6424D+ Avaya 6424D+M