Allworx 6X System Automatic Call Distribution ACD License (8210050) Conference Phones and has a 19" 1U

and has a 19" 1U standard size chassis

Four power failure transfer ports are built into the KX-TDA6181 to provide connectivity in the event of power failure

Adtran 1204288L2 Features:

15 μF (2-wire) VF interface with DC isolation

Adtran Opti-6100 1184513L1 Module Description:

Allworx 6X System Automatic Call Distribution ACD License (8210050) Conference Phones and has a 19" 1UAllworx 6X Automatic Call Distribution Description: The Allworx Automatic Call Distribution license for your Allworx 6X system, also known as ACD, allows you to distribute calls for up to sixteen callers across ten defined queues. Four styles of call distribution exist; linear priority, round robin, longest idle, and ring all. Allworx 8210050 Features: Compatibility: Allworx 6X Requires Software 7. 1 or higher Distributes Calls Up to sixteen callers