Chapter 5
Communication Protocols
This chapter covers the following topics:
PSTN Communication: This topic will discuss the various PSTN connections options, including POTS, ISDN via BRI, and ISDN via PRI.
H.323 Communication: This topic will discuss the H.323 umbrella standard, H.323 gatekeeper registration, call flow without a gatekeeper, and call flow with a gatekeeper.
SIP Communication: This topic will cover the IETF SIP, discuss basic SIP registration, and address SIP call setup using early offer and delayed offer.
NAT and Firewall Traversal Solutions: This topic will discuss the different IETF NAT traversal protocols, including STUN, TURN, and ICE. This topic will also discuss the Cisco proprietary traversal protocol, ASSENT, and the ...
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