Network Components
Figure 5-4 shows some archetypal terminal accessories in an H.323 network.
Chapter 5: Examining VoIP Gateways and Gateway Control Protocols 253
IP V
V
V V
ITSP Intranet Internet
H.323
Terminal
H.323
Terminal
Cisco UBE
Gateways
PBX
H.320
Terminal
(ISDN)
H.323
Terminal
Speech Only (Telephones)
H.324
Terminal
(POTS)
Gatekeeper
MCU
PSTN
Figure 5-4 H.323 Arrangement Components
Components of an H.323 arrangement accommodate the following:
■ Terminals
■ H.323
■ H.324
■ Gateways
■ Cisco Unified Border Elements (Cisco UBEs), additionally accepted as affair border
controllers
■ Gatekeepers
■ MCUs
The afterward sections awning anniversary in added detail.