User guide
 System Administrator’s Guide – Release 7.5 
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Revised: April 9, 2013 
Page 125 
Enable NANPA for installations in North America and disable NANPA for all other 
locations. 
When NANPA is disabled (unchecked) access the outside lines using the steps 
described in the Exceptions section, above. 
14.3 Defining Service Groups 
To add a new service group: 
1.   Navigate to Phone System > Dial Plan. Go to the Service Groups section. 
2.   Click the add new Service Group link. The New Service Group page 
displays. Alternately, click copy of a service group to create a copy, and then 
click the Modify link. 










