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IP Telephony Configuration Guide

Chapter 3

Installing IP telephones

An IP telephone converts the voice signal into data packets and sends these packets directly to

another IP telephone or to the Business Communications Manager over the LAN or the internet. If

the destination is an IP telephone, the arriving voice packets are converted to a voice stream and

routed to the speaker or headset of the target telephone. If the destination is the Business

Communications Manager, the voice stream is routed to a circuit switched connection, such as a

telephone (internal) or line (external PSTN or private network), or some form of gateway (VoIP).

Before setting up IP clients, you must enable keycodes for IP telephony. For information about

entering IP Client keycodes, see the Keycode Installation Guide.Each IP Client keycode opens a

specific number of IP telephone channels on the system. Channels are distributed on a one-to-one

basis as each IP telephone or NetVision handset registers with the system.

This section includes information about:

• “Supporting IP telephony” on page 39

• “Configuring Nortel Networks i-series telephones” on page 40

• “Modifying IP telephone status settings” on page 53

• “Working with the features list” on page 55

• “Download firmware to a Nortel IP telephone” on page 60

• “Deregistering DNs for IP telephones” on page 62

• “Moving IP telephones” on page 63

• “Configuring the Nortel Networks i2050 Software Phone” on page 64

Supporting IP telephony

The Business Communications Manager supports two types of IP telephony protocols, UNISTIM

and H.323.

• The Nortel Networks i-series telephones use the UNISTIM protocol.

• The Symbol NetVision and NetVision Data telephones use H.323+. Refer to Chapter 4,

“Installing NetVision telephones,” on page 67.

The applications that control these protocols on the Business Communications Manager provide

an invisible interface between the IP telephones and the digital voice processing controls on the

Business Communications Manager.

Note: IP telephones require an IP network to reach the Business Communications

Manager. However, they do not need to use VoIP trunks to communicate beyond the

Business Communications Manager. They can use any type of trunk in the same way that

digital telephones do.

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Avaya IP Telephony Guía de configuración Pagina 39