Description
Start by reviewing the key characteristics of the Internet and IP that make VoIP a challenging proposition, including packet loss and variable delay. Next, understand the role of digital signal processors (DSPs) and voice coders in VoiP. Understand how to establish paths to service providers through the local loop via ISDN, xDSL, HFC or other approaches; review modem technology for VoIP applications; and review key protocols such as RTP, RSVP, MGCP, and H.323. Learn today's best techniques for managing performance in both private and public IP networks; understand the role of VoIP gateways and gatekeepers; and discover how IP can be internetworked with SS7. Finally, review other packet voice alternatives, including voice over frame relay, and voice over ATM.
