ZyXEL Communications ISG50 User Manual
Chapter 30 Outbound Trunk Group
ISG50 User’s Guide
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30.1.3 Before You Begin
Before you start to configure an outbound line group, please consider the following.
• In order to create an FXO/BRI trunk the ISG50 must have a corresponding FXO or BRI port.
• In order to create a SIP trunk you must already have a SIP account and a network connection to
• In order to create a SIP trunk you must already have a SIP account and a network connection to
your VoIP service provider.
• In order to create a Trusted Peer trunk you must already have a SIP server’s information (for
example, IP address) and a network connection to the peer device.
30.2 Outbound Trunk Group Screen
Use this screen to manage the outside lines on the ISG50. To access this screen, click
Configuration > PBX > Outbound Line Management > Outbound Trunk Group.
Configuration > PBX > Outbound Line Management > Outbound Trunk Group.
Figure 311
Outbound Line Management > Outbound Trunk Group