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Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.5
OL-14912-01
Chapter 1 Functionality
About Cisco Unified Videoconferencing 3545 Gateway Applications and Topologies
About Gateway Encryption
The serial gateway enables encrypted videoconferencing between H.323 endpoints on the IP network
and endpoints on remote sites by connecting to external encryption/decryption devices via serial
interfaces (as shown in Figure 1-6). The serial gateway also enables encrypted videoconferencing via
satellite with or without RS-366 signaling (as shown in Figure 1-7).
Figure 1-6 Encrypted Videoconferencing
Figure 1-7 Encrypted Videoconferencing via Satellite
157168
H.323
endpoint
H.323
endpoint
Cisco
chassis/unit
with serial
gateway
IP network
Isolator
RS-366
EIA-530A
RS-366
EIA-530A
DTE
IMUX
DCE
KIV-7
ISDN
157169
H.323
endpoint
H.323
endpoint
Cisco
chassis/unit
with serial
gateway
IP network
KIV-7
Serial
DTE DCE
Satelite
access