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Configuring Call by Call services
Using dialing restrictions with routing
You can further customize routing service by adding dialing filters to lines in line pools. Filters
restrict the use of the line to specific area codes.
To set up restriction filters, refer to
TIPS: host system signaling codes can be part of the dial out.
You can also use routing as an alternate method for a direct-dial number. For example, create a
destination code 0 and program the number of the internal or external destination as the dialout.
Set the digit absorption to 1.
Configuring Call by Call services
Call by Call service selection (CbC) allows you to access services or private facilities over a PRI
line without the need for dedicated facilities. The different services represent different types of
access to the network.
This section includes information about:
•
"Call by Call services" on page 351
•
"Switches supporting Call by Call limits" on page 352
•
"Provisioning for Call by Call limits with PRI" on page 352
•
"Setting CbC limits" on page 353
•
"Viewing CbC limit metrics" on page 355
Supporting protocols
The following protocols support Call by Call limits:
•
National ISDN 2 (NI-2)
•
DMS-100 custom
•
DMS-250 (MCI, Sprint, Generic)
•
AT&T 4ESS custom
N0008589 3.3
"Defining restriction filters" on page
356.
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