6 using call features, Figure 25 example: msn, Example 3: company with existing – ZyXEL Communications IP PBX X6004 User Manual
Page 90: Pbx and expanding employees, Using call features

Chapter 3 Tutorials
X6004 User’s Guide
90
• If you are using BRI line(s) and you want to have multiple subscriber numbers
on one port, select MSN and configure the settings as following. Then click
Apply.
Figure 25 Example: MSN
Note: We don’t use DDI/DID in this type of example because DDI/DID is mainly used
for outsiders to call extensions.
3.5.3 Example 3: Company with Existing PBX and Expanding
Employees
For a company which has a PBX, and is expanding to include more employees, or
a new branch office (for example). The X6004 is behind the PBX system connected
using a PRI line.
• See an example of configuring ISDN settings in
.
• Like Example 2, you can also select Direct (if you want the callers from the
PBX’s extensions to the X6004’s not to go through the Auto-Attendant) or MSN
(if you are using BRI line(s) and you want to have multiple subscriber numbers
on one port).
Note: Like Example 2, we don’t use DDI/DID in this type of example because DDI/
DID is mainly used for outsiders to call extensions.
3.6 Using Call Features
The X6004 has built-in call features for functions such as call forwarding, call
blocking, voicemail and so on. These features can be activated or accessed by
dialing specific numbers from the phones connected to the X6004. The numbers
used to access call features are called call feature codes. This section shows you
how to customize call features. It also describes how to configure a ZyXEL IP
phone (V300 is used in our example) to access voicemail by using the voicemail
feature code. See
for more information on all call
features.