ShoreTel VPN Concentrator 4500 Conference Phones and a 10/100 Ethernet port

and a 10/100 Ethernet port

Dedicated connection to each Optical Multiplexer Module (OMM) module for robust operation

Analog Circuit Card

this item does not include the control knob

Loop Hook Test

ShoreTel VPN Concentrator 4500 Conference Phones and a 10/100 Ethernet portShoreTel VPN Concentrator 4500 Description: Built to enable VPN tunneling, the ShoreTel VPN Concentrator enables secure communication over the WAN Internet. The ShoreTel VPN Concentrator 4500 supports up to 10 simultaneous VPN connections. The VPN concentrator supports a wide range of other features including redundancy support with a second concentrator and four 10 100 Fast Ethernet connections. ShoreTel VPN Concentrator 4500 Features: Supports Up to