User's Manual

Features not currently supported 99

For more information about SRTP media encryption, see “Features

overview” (page 453).

•

802.1Q VLAN and 802.1p priority support, industry standards to

manage bandwidth use

—

full VLAN capability, including a manageable integrated switch in

the IP Phone; allows VLAN and priority tagging for the IP Phone

traffic and VLAN tagging for PC traffic

— VLAN filtering allows the IP Phone to see Voice VLAN traffic

only. The integrated switch passes DATA VLAN traffic to the PC

Ethernet port. This prevents the Data VLAN broadcast traffic from

reaching the IP Phone. For more information, see “802.1Q VLAN

description” (page 471) and Converging the Data Network with

VoIP Fundamentals (NN43001-260).

• 802.1x Port-based network access control, industry standards to pass

Extensible Authentication Protocol (EAP) over a LAN

For more information about 802.1x port-based network access control,

see “802.1x Port-based network access control” (page 479).

• integrated hardware to support Power over Ethernet (PoE) for IEEE

802.3af Power Classification 2

• Gratuitous Address Resolution Protocol (GARP) Protection

The IP Phone 2004 supports the following user interface features:

• External Application Server (XAS)

•

language support: English, French, Swedish, Danish, Norwegian,

German, Greek, Dutch, Portuguese, Czech, Finnish, Hungarian, Italian,

Polish, Spanish, Russian, Latvian, Turkish, and Katakana

•

IP Key Expansion modules

For more information about IP Key Expansion module, see “IP Phone

Key Expansion Module (KEM)” (page 129).

Features not currently supported

The following features are not supported on the IP Phone 2004:

• Group Listening

• Set-to-Set messaging

Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 02.07

5 February 2009