Cisco WIP310 v2 Wireless-G IP Phone (WIP310v2) Accessories The 3C16985B supports both half-duplex

The 3C16985B supports both half-duplex and full-duplex data transmission in addition to support for the IEEE 802

The 3com 6040 has 4 FIC slots in addition to 2x 10/100 Base-TX Ethernet ports

HAC (Hearing Aid Compatible)

and National ISDN-1

Cisco WIP310 v2 Wireless-G IP Phone (WIP310v2) Accessories The 3C16985B supports both half-duplexCisco WIP310v2 Cordless Description: The Cisco WIP310 v2 is a cordless IP phone that supports session initiation protocol (SIP v2). Featuring superior sound quality, the Wireless G signal will allow you to communicate with virtually no distortion. The WIP310 has a backlit LCD color display, but best of all, the keys are also backlit for low light visibility. WIP310v2 Features: Backlit LCD Display (128x160 pixels) Session Initiation Protocol (SIP v2)