ZyXEL Communications ISG50 User Manual

Chapter 60 Extension Portal

ISG50 User’s Guide

Each field is described in the following table.

Forward/Block

Call Forward 
Settings

Use this section to configure call forwarding settings for your extension. 

Office Hour

The ISG50 has separate rules for call forwarding during office hours than after office 
hours. For information, see 

Select Authority Group to have the extension use the office hours defined for the 
authority group to which it belongs. Select User Defined to specify custom office hours 
for this extension.

Sun ~ Sat

Select the days of the week which you want the ISG50 to treat as working days.

Specify the time range during the working days that you want the ISG50 to treat as 
working hours.

When entering a time range, the following conditions apply:

•

You can enter up to six time ranges, with each range consisting of a start time and an 

end time.

•

The time entered in each field must be in 24 hour format (such as “08:00” for 8 AM or 

“13:00” for 1 PM). 

•

The start and end times must be separated by a hyphen.

Holiday

This section allows you to set a specific day of the year as a holiday, which the ISG50 will 
then treat as “after office hours”.

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.

Date

Enter a date in mm/dd format (double digit month / day; for example, 02/09 for February 
9th.)

Description

Enter a description of the holiday using up to 63 alphanumeric characters (A-Z, a-z, 0-9) 
and spaces.

DND (Do Not 
Disturb)

Select Disable to turn this feature off for this extension.

Select Enable and the ISG50 will not forward calls to your extension. Use the White List 
to configure telephone numbers which ignore whether you have DND turned on or off. 
Use the Add, Edit, and Remove icons to create, modify, or delete entries. 

Select Voice Mail and the ISG50 will forward calls directly to voice mail.

Blind Forward

Select Disable to turn this feature off for this extension.

Select Enable and specify an extension or other phone number 3-20 digits in length. The 
ISG50 will forward all incoming calls to that extension.

Select Voice Mail and the ISG50 will forward calls directly to voice mail.

Busy Forward

Select Disable to turn this feature off for this extension.

Select Enable and specify an extension or other phone number 3-20 digits in length to 
forward all incoming calls to that extension when the phone is off the hook. For FXS 
(analog phones) extensions incoming calls are put into a call waiting queue.

Select Voice Mail to forward calls directly to voice mail.