Aiphone NE-NVP-2DC/A NE-NVP WITH EXTRA DPDT CALL BUTTON (REPLACES NE-NVP-2DC, #335213), Stock# NE-NVP-2DC/A Polycom Telephone Station it's a pulling eye on

it's a pulling eye on one end and a smaller twisted eye on the other end for the tailing line allowing bi-directional use

The unit requires 5 user licenses and KX-T7601 USB Expansion Card

The well-made Polycom 2200-46170-001 Universal Power Supply for VVX 300

but who are power users

Aiphone NE-NVP-2DC/A NE-NVP WITH EXTRA DPDT CALL BUTTON (REPLACES NE-NVP-2DC, #335213), Stock# NE-NVP-2DC/A Polycom Telephone Station it's a pulling eye onProduct features Hands free communication Flush mount, or surface mount with SBX NVP Tamper resistant screws Stainless steel mechanical standard call button Red alternate action emergency call button with two sets of contacts to activate other systems Moisture and puncture resistant speaker with metal barriers to protect speaker from tampering *NEW IN THE BOX