
292 Chapter 25 Dialing plan: Routing configurations
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Adding Carrier access codes to destination codes
In some cases, long distance service uses the same lines as local service but is switched to a
specific carrier using an access number, which is sometimes referred to as an carrier access code
(CAC). Route programming can include the access number so the users do not have to dial it every
time they make a long distance call. Figure 95 shows an example of how the system interprets
what the user dials into a valid outgoing call.
Figure 95 Carrier code call numbering sequence
To program a long distance carrier access code into a
destination code
1 Create a route that uses a line pool containing local lines only. (“Routes” on page 296)
2 Program a route to use a line pool containing the lines used to access the long distance carriers.
3 Type the dialout digits, which are the same as the access digits. For example, if the access code
is 10222, the dialout digits are 10222.
4 Create a destination code 91: 9 (for outside access) and 1 (for long distance). You must use a
valid destination code.
Note: Carrier code service must be supported from the Central Office.
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