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Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 196
Configuring Dial Plans
Dial plans determine how the digits are interpreted and transmitted. They also
determine whether the dialed number is accepted or rejected. You can use a dial
plan to facilitate dialing or to block certain types of calls such as long distance or
international.
If the Cisco SPA IP Phones are part of the Cisco SPA 9000 Voice System, dial
plans are configured on the Cisco SPA 9000. In installations where a Cisco SPA
9000 is not present (such as IP Centrex installations), installations where the
phones are removed from the SPA 9000 (such as by a VPN), or other situations,
dial plans can be configured on the IP phone using the configuration utility.
For more information on using dial plans on the Cisco SPA 9000 Voice System, see
the Cisco SPA 9000 Voice System Administration Guide. See the Appendix C,
“Where to Go From Here,” for the location of the document.
This section includes information that you need to understand dial plans, as well as
procedures for configuring your own dial plans. This section includes the following
topics:
• About Dial Plans, page 196
• Editing Dial Plans on the IP Phone, page 206
About Dial Plans
This section provides information to help you understand how dial plans are
implemented.
The Cisco SPA IP Phones and the SPA 9000 are involved in applying various levels
of the dial plans and process the digits sequence in the same manner.
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