ZyXEL Communications ISG50 Manual De Usuario
ISG50 User’s Guide
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H A P T E R
6
Configuration Basics
This information is provided to help you configure the ISG50 effectively. Some of it is helpful when
you are just getting started. Some of it is provided for your reference when you configure various
features in the ISG50.
you are just getting started. Some of it is provided for your reference when you configure various
features in the ISG50.
•
introduces the ISG50’s object-based configuration.
•
introduces zones, interfaces, and port groups.
•
•
covers the ISG50’s packet flow.
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configure the main screens for each feature. For example, if you want to configure a trunk for
load-balancing, you should configure the member interfaces before you configure the trunk. After
you configure the trunk, you should configure a policy route for it as well. (You might also have to
configure criteria for the policy route.)
load-balancing, you should configure the member interfaces before you configure the trunk. After
you configure the trunk, you should configure a policy route for it as well. (You might also have to
configure criteria for the policy route.)
•
identifies the objects that store information used by other features.
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introduces some of the tools available for system management.
6.1 PBX Features Overview
This chapter is an overview of different logical components and how they work together to route
calls on the ISG50.
calls on the ISG50.
6.1.1 Call Routing
The two main functions of any IP-PBX are routing internal calls and handling calls to and from the
outside world.
outside world.
The following sections explain how these functions are performed on the ISG50.
6.1.1.1 Call Routing Terms
The following are some terms related to ZyXEL’s IP-PBX implementation.
• Extension - This is a unique number assigned to each telephone connected to the ISG50.
Extensions are used to make calls between phones connected to the ISG50 and to route calls
from the outside world to their correct target. Extensions fall into the following two groups:
from the outside world to their correct target. Extensions fall into the following two groups:
• SIP Extension - This is an extension assigned to a SIP (Session Initiation Protocol) based IP
phone connected to the ISG50. Alternatively this could be an extension assigned to an analog
phone which connects to the ISG50 via a VoIP gateway device.
phone which connects to the ISG50 via a VoIP gateway device.