ZyXEL Communications ISG50 User Manual

 Chapter 34 Call Services

ISG50 User’s Guide

The following table describes the labels in this screen. 

The ISG50 allows you to specify a music file to play when callers are placed on hold. This lets the 
callers know that they are still connected. Use this screen to customize the default music callers will 
hear when placed on hold. If you create any custom profiles then they can override this setting.

Configuration > PBX > Call Service > Emergency Call

Outbound Line 
Summary

Use this section to specify which outside line groups should be used for emergency calls.

Add

Click this to create a new entry. Select an entry and click Add to create a new entry after 
the selected entry.

Edit

Double-click an entry or select it and click Edit to modify it. 

Remove

To remove an entry, select it and click Remove. The ISG50 confirms you want to remove 
it before doing so.

#

This field displays the number of the entry.

Outbound Line 
Pool

This field shows an outside line group selected for emergency call use. When adding or 
editing an entry, click in the field and use the drop-down list to select an outside line group 
for emergency call use.

Prefix

This is any prefix that must be added to emergency calls when using this outside line.

Specify a number which should be inserted at the beginning of the dialed number before it 
is sent out from the ISG50. For example, if the ISG50 is behind another PBX and calls to 
the outside require a “0” to be dialed first, specify it here. 

When adding or editing an entry, click in the field and type the prefix number necessary to 
connect users to an emergency number by simply dialing the emergency number you 
configure in the Emergency Number Summary section of this screen. 

Emergency 
Numbers 
Summary

Use this section to add, edit or remove emergency numbers.

Add

Click this to create a new entry. Select an entry and click Add to create a new entry after 
the selected entry.

Edit

Double-click an entry or select it and click Edit to modify it. 

Remove

To remove an entry, select it and click Remove. The ISG50 confirms you want to remove 
it before doing so.

#

This field is a sequential value, and it is not associated with a specific entry.

Emergency 
Numbers

This column displays the emergency numbers currently configured on the ISG50. When 
adding or editing an entry, click in the field and type the emergency number. This is the 
number (such as 911) a person dials in case of emergency. 

Apply

Click this to save your changes.

Reset

Click this to set every field in this screen to its last-saved value.