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Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 213
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 SPA9000, dial plans are
configured on the Cisco SPA9000. In installations where a Cisco SPA9000 is not
present (such as IP Centrex installations), installations where the phones are
removed from the Cisco SPA9000 (such as by a VPN), or other situations, dial
plans can be configured on the IP phone by using the phone web user interface.
For more information on using dial plans on the Cisco SPA9000, see the
Cisco SPA9000 Administration Guide. See the Appendix B, “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:
• About Dial Plans
• Editing Dial Plans on the IP Phone
• Resetting the Control Timers
About Dial Plans
The Cisco SPA IP phones and the Cisco SPA9000 are involved in applying various
levels of the dial plans and process the digits sequence in the same manner.
When a user lifts a handset or presses a speaker button on the IP phone, the
following sequence of events begins:
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