80
C
HAPTER
6: G
ETTING
M
ORE
FROM
Y
OUR
T
ELEPHONE
S
YSTEM
In this example, to call a user in Dallas, a user in Chicago dials a Dallas
extension (3000 through 3999). The dial plan on the Chicago NBX system
sets up the necessary connection to the Dallas NBX system and then to
the extension at that site.
Figure 4
Using Unique Extensions to Dial Remote Offices
Using Site Codes
If some users have
overlapping
telephone extensions, your administrator
can configure your telephone system to use
site codes
for you to dial
people at remote offices. Your administrator chooses the site codes for
your system. In this example, you dial a site code first, followed by the
extension at the site.
For example, as shown in
Figure 5
, to call someone in Atlanta, a user in
Chicago dials the site code 62 and then the appropriate extension (1000
through 3999). To reach a user in Dallas, a user in Chicago dials 63 and
then the appropriate extension (1000 through 3999). The site code
prevents conflicts between the remote extension number and a
duplicated extension number at the local site (Chicago).
1
NBX System in Chicago
Extensions:
1000–1999
2
Wide Area Network (WAN)
3
NBX System in Atlanta
Extensions:
2000–2999
4
NBX System in Dallas
Extensions:
3000–3999
1
3
4
2
Summary of Contents for 3C10399A
Page 16: ...16 CHAPTER 1 GETTING STARTED...
Page 36: ...36 CHAPTER 3 NBX MESSAGING...
Page 62: ...62 CHAPTER 5 PERSONALIZING YOUR TELEPHONE...
Page 88: ...88 CHAPTER 7 FEATURE CODES...
Page 100: ...100 INDEX...
