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Hold the IP Phone: Page 6 of 7

• 802.1q: An IEEE standard governing VLANs. See www.ieee802.org/1/pages/802.1Q.html.

For more details, see InternetWeek's VoIP glossary and InformationWeek's "Settling On Standards."

If you don't have an IP PBX but wish you did, here are some points to consider when presenting your case:

• An IP PBX simplifies adds, moves and changes.

• You can add new features more easily to software than to a traditional PBX.