
Chapter 5 Dial Plan Architecture and Configuration
Configuring Dial Plan Groups and Calling Restrictions
5-16
Cisco IP Telephony Network Design Guide
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Figure 5-6 Partitions and Calling Search Spaces Used to Provide
Dialing Restrictions
In Figure 5-6, staff employees have unrestricted dialing, whereas the lobby
phones have the ability to dial people within the local site only. All IP phones are
placed in the SJ-Users partition, and the route pattern 9 associated with the PSTN
is placed in the SJ-PSTN partition. Two calling search spaces are created that
denote two different dialing characteristics. A calling search space called
Unrestricted is created that contains both SJ-Users and SJ-PSTN partitions. A
San Jose
Staff - may dial anywhere
Lobby phones - only can dial internal users
“SJ-Users” = All SJ IP phones
“SJ-PSTN” = “9” route pattern
Partition assignment
“Unrestricted” = SJ-Users, SJ-PSTN
“SJ-Only” = SJ-Users
Calling search space
Staff IP phones = “Unrestricted”
Lobby IP phones = “SJ-Only”
IP phone calling search space assignment
PSTN
Headquarters
V
IP
IP
IP
40799
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