Chapter 8. Connecting to an IP WAN
The previous chapters have focused on Voice over IP (VoIP) within the IP network at a single site. The gateway in such a setup would interconnect public switched telephone network (PSTN), PBX, and other plain old telephone service (POTS) endpoints with voice-enabled IP endpoints, such as IP phones. VoIP over the WAN has several applications, such as connecting multiple sites, allowing service providers to terminate long-distance and local voice calls, providing voice services to telecommuters, and so on.
In this chapter you will learn
• Applications for connecting to an IP WAN
• Design considerations when using VoIP over an IP WAN
• Quality of Service issues and solutions
• Configuring Quality of Service to ...
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