Avaya Partner ACS 509 Processor Module (5x9, Release 7.0, Refurbished) Fujitsu and a Clamshell is required

and a Clamshell is required for Merlin Legend carriers

It also has a built in  2-way speakerphone for conferencing and listen only use

0 and a Clamshell is required for Merlin Legend carriers

This Avaya Merlin BIS 34 Phone is a business phone that has an enhanced design and functionality

34 programmable feature buttons

Avaya Partner ACS 509 Processor Module (5x9, Release 7.0, Refurbished) Fujitsu and a Clamshell is requiredAvaya Partner ACS 509 Processor Module (Release 7. 0) The Avaya Partner ACS 509 Processor Module (5x9, Release 7. 0) is a powerful control unit designed for Avaya Partner ACS phone systems. Supporting up to 5 lines and 9 extensions, this module provides the core processing and system management needed for small to mid sized business environments. With Release 7. 0 firmware, this unit offers enhanced system capabilities, improved performance, and