ZyXEL Communications IP PBX X6004 - Manual (Page 79)

Chapter 3 Tutorials
X6004 User’s Guide
79
3
You can now use the telephones that are part of the Basic authority group to
make long distance calls using the ITSP connection. The following figure
summarizes the outbound call process for this example.
3.4 Making ISDN Calls
The following section shows you how to make and receive calls via a connection to
the ISDN. This example covers:
• The ISDN Connection - configuring the outbound line group’s connection
settings from the BRI/PRI interface card to the ISDN.
• Creating a Dialing Rule for ISDN - creating a rule which tells the X6004 when
to use the ISDN connection when completing outbound calls.
• Assigning an LCR to an Authority Group - giving extensions the right to
make outbound calls via the ISDN connection.
Figure 19 Making an ISDN Call
ITSP
212-555-555
1001
Caller dials
1212555555
The X6004 matches this number
with the long_distance_call LCR,
applies the offset (strips off the 1),
of the number and routes the call
to ITSP.
sends the call
016212555555.
The X6004
adds the prefix 016 to the start of
and sends the call
to 212555555.
The ITSP applies
the dialing plan rate
BRI/PRI
ISDN
8005555555
1000
Caller dials
8005555555
The X6004
matches this number
with an LCR, routes the
call to ISDN.