RADVision SCOPIA 400, User Manual

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4 SCOPIA 400/1000 Gateway User Guide
About Gateway Features
Table 1-2 lists features for specific
RADVISION
Gateways.
ISDN connection failure The Gateway responds to ISDN connection failure events, by unregistering from its
gatekeeper. The gatekeeper is forced to send new IP-to-ISDN calls through a different
gateway, thus ensuring high call completion rates. The Gateway re-registers to the
gatekeeper when the ISDN connection is restored.
Downspeeding The Gateway features downspeeding functionality. In the downspeeding feature, the
Gateway attempts to reconnect a disconnected video call either at a lower bandwidth or as a
voice call. Downspeeding contributes to a higher percentage of call completion on the
network. The Gateway supports downspeeding at call setup and in mid-call.
Multiple trap server support The Gateway supports up to three SNMP trap servers.
H.239 support The Gateway supports the H.239 protocol in ISDN-to-IP calls and in IP-to-ISDN calls.
Encryption support The Gateway supports H.235-compliant AES 128 encryption for calls over IP networks, and
H.233 and H.234-compliant AES 128 encryption for calls over ISDN networks.
H.243 Conference Control
support The Gateway supports the H.243 protocol in ISDN-to-IP calls and in IP-to-ISDN calls. The
Gateway identifies the protocol version that an IP endpoint uses and sends H.239
capabilities only to those endpoints working with protocol version 4.0 or later.
Peer-to-peer connectivity The Gateway supports connectivity to the IP network through a gatekeeper, or directly to a
peer device such as Cisco Unified Communications Manager.
IP network connections The Gateway has one 10/100Base-T Ethernet IP port (on the front panel) and connects to an
IP segment through a direct connection to a network switch.
Table 1-1 Gateway Feature Summary (continued)
Feature Description
Table 1-2 Gateway Feature Specifics
Feature Gateway P20 SP Gateway S40 SP
Supported ports 2 PRI ISDN ports 4 serial ports
Supported video
conferencing protocols H.320, H.323 (using RADVISION Stack v4.0)