Avaya IP Telephony Guia de Configuração descarregar pdf (Página 24)

24 Chapter 1 Introduction

P0604630 03

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 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 3.5 system is attached, but Gatekeepers can be useful on

networks with a large number of devices. Referring to Figure 1 on page 22, 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. Digital telephone A sends a request to

the gatekeeper. The gatekeeper, depending on how it is programmed, provides Digital telephone A

with the information it needs to contact BCM B over the network. Business Communications

Manager B then passes the call to IP telephone B. SIP trunks do not use gatekeepers.

IP network

In the network shown in Figure 1 on page 22, several LANs and a WAN are shown. When

planning your network, be sure to consider all requirements for a data network. Your network

administrator should be able to advise you about the network setup and how the Business

Communications Manager fits into the network.

WAN

A Wide Area Network (WAN) is a communications network that covers a wide geographic area,

such as state or country. For Business Communications Manager, a WAN is any IP network

connected to a WAN card on the Business Communications Manager system. This may also be a

direct connection to another Business Communications Manager system.

If you want to deploy IP telephones or NetVision telephones that will be connected to a LAN

outside of the LAN that the Business Communications Manager is installed on, you must ensure

the Business Communications Manager has a WAN connection. This includes ensuring that you

obtain IP addresses and routing information that allows the remote telephones to find the Business

Communications Manager, and vice versa.

Note: The Business Communications Manager does not contain a gatekeeper application.

If you want to put a gatekeeper on your network, it must be put on a separate gatekeeper

server. The Business Communications Manager is compatible with RadVision and

CSE 1000 (CSE1K) gatekeepers. Refer to “Using a gatekeeper” on page 127 and

Appendix D, “Interoperability,” on page 169.

Warning: Meridian 1 IPT does not support the RadVision gatekeeper.

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 211 212

Sem comentários

Avaya IP Telephony Guia de Configuração Página 24