Although this chapter did not include all the information you need to configure a large-scale VoIP network, it did cover the basics of Cisco IOS configuration for VoIP. It also explained the various components a network administrator must consider before designing and deploying a VoIP network, including dial-plan considerations, such as single- and two-stage dialing, and their ramifications on voice dialing plans.
This chapter also covered ways in which single- and two-stage dialing affect users, and it provided details on feature transparency. With a move to VoIP, it is important to determine whether any of the features you rely upon today are transparently passed across this new VoIP network.
The chapter concluded with information on ways in which Cisco uses dial-peers to map IP addresses and physical interfaces to phone numbers. This technique provides a great deal of flexibility to network administrators, as it enables them to create whatever type of dial plan best fits their user base.
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