The SBM24 Button Module provides 24 additional programmable buttons for lines and features.
Compatible with the 9630, 9640 and 9650 AVAYA IP Phones.
For the AVAYA Communication Manager release 4.0 or higher, and for Aura release 3.1 and below, each phone supports one module and up to three modules per system.
For the AVAYA Aura Communications Systems with software higher than 3.1, each phone supports up to three modules.
AVAYA part numbers 700383417, 700426737, 700462518