- Support of a single line or directory number
- Calling name and number display
- Call waiting
- Call forward
- Call transfer
- Support of Extension Mobility
- Three-way calling (conference)
- On-hook dialing, predialing, and off-hook dialing
- Redial
- Call hold
- Call monitor
- Cisco Discovery Protocol
- Automatic IEEE 802.1Q (voice virtual LAN [VVLAN]) configuration
- IEEE 802.1Q /p VLAN tagging and traffic prioritization
- 802.1Q VLAN-based switching of traffic between the phone and access switch
- Differentiated Services Code Point (DSCP) tagging
- G.711a, G.711u, and G.729ab audiocompression coders-decoders (codecs)
- Integrated Ethernet switch
- 10/100BASE-T Ethernet connection through an RJ-45 interface for LAN connectivity
- Software upgrade supported using a Trivial File Transfer Protocol (TFTP) server
- Provisioning of network parameters through Dynamic Host Configuration Protocol (DHCP)
- Voice activity detection, silence suppression, comfort-noise generation, and error concealment
- Dimensions : 20.3 x 17.67 x 15.2 cm
- Weight: 0.9 kg