Avaya IP Telephony Guía de configuración descargar pdf (Pagina 25)

Chapter 1 Introduction 25

IP Telephony Configuration Guide

M1-IPT

The Meridian 1 Internet Telephony Path (M1-IPT) allows Meridian 1 systems to communicate

with the Business Communications Manager via H.323 trunks. Telephones on the M1, such as

Meridian telephone A, can initiate and receive calls with the other telephones on the system across

IP networks.

To provide fallback at times when IP traffic cannot pass, you can also connect the Meridian to the

Business Communications Managers through ISDN PRI SL-1 lines, which provide the same

MCDN capability that you can achieve through the H.323 VoIP trunks with MCDN active.

Refer to the Programming Operations Guide for a description of MCDN features and networking

with PRI SL-1 lines. “Typical network applications using MCDN” on page 147 describes how to

provide the same network over VoIP lines.

A Business Communications Manager connected to an M1-IPT using the MCDN protocol can

provide access to a central voice mail and call attendant systems, which can streamline

multi-office telephony administration.

Telephones

The Business Communications Manager can communicate using digital telephones (Model 7000,

7100, 7208, T7316, T7316E/T7316E+KIMs, M7310(N), M7324(N)), T7406 (cordless telephone),

wireless telephones (Companion, DECT), IP telephones and applications (i-series 200X and the

Nortel Networks i2050 Software Phone), and IP wireless telephones (NetVision and NetVision

Data telephones). With this much flexibility, the Business Communications Manager can provide

the type of service you require to be most productive in your business.

While analog and digital telephones cannot be connected to the Business Communications

Manager system with an IP connection, they can make and receive calls to and from other systems

through VoIP trunks. Calls received through the VoIP trunks to system telephones are received

through the LAN or WAN card and are translated within the Business Communications Manager

to voice channels.

The IP telephones connect to the Business Communications Manager across an IP network

through either a LAN or a WAN. From the Business Communications Manager connection, they

can then use standard lines or VoIP trunks to communicate to other telephones on other public or

private networks. The Business Communications Manager also supports H.323 (version 4) and

H.323 third-party devices through this type of connection.

Gatekeepers on the network

A gatekeeper tracks IP addresses of specified devices, and provides routing and (optionally)

authorization for making and accepting calls for these devices. A gatekeeper is not required as part

of the network to which your Business Communications Manager system is attached, but

Gatekeepers can be useful on networks with a large number of devices. Referring to Figure 1 on

page 24, for example: Digital telephone A wants to call IP telephone B, which is attached to

Business Communications Manager B, over a network that is under the control of a gatekeeper.

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Avaya IP Telephony Guía de configuración Pagina 25