Oki BV1250, Руководство по установке

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APPENDICES Oki BV1250 Installation Guide
Page 268 of 334 Revision 1.0
Terminal mode
Terminal mode is one of the operational modes of the Maintenance
Console Software. The terminal mode includes functions like LAN
maintenance, emergency maintenance, and FTP client startup.
Traffic measurement
One of the functions supported by BV1250. The BV1250 has traffic
counters in internal memory. These counters measure the number of
originated calls and the number of terminated calls. Traffic
information can be output to the maintenance console.
Trap
One of the signals included in the Simple Network Management
Protocol (SNMP). A trap is sent to the Network Management System
(NMS) in the event of an equipment fault for diagnostic purposes.
TRS
Inter-equipment Routing Service group is a OKI proprietary feature
that allows Gatekeeper units to be configured by a system
administrator for routing groups among stacked/cascaded IVGs.
UDP
User Datagram Protocol. An unreliable networking layer that sits at
the same level of the networking stack at TCP.
Unreliable Transmission
Connection-less transmission which provides best-effort delivery of
data packets. Messages transmitted by the sender bay be lost,
duplicated, or received out of sequence.
Voice compression
A high-quality voice compression function is incorporated in BV1250
to achieve voice communication through the IP network. At the
calling side, voice is compressed to 8 Kbps digital signal and then
packaged (IP packetization) and delivered to a router for transport
across the network. On the receiving side, a BV1250 unit reassembles
the IP packets and restores them to the digital signal. The original
voice is regenerated by expanding (decompressing) the restored
digital signal.
Wink-start
One of the PBX startup methods (timing methods) employed by
BV1250. A short off-hook pulse is sent to PBX to notify it that the
equipment is ready to receive digital information from the calling
side. PBX controls the startup by this pulse. The timing of the pulse
width can be changed at wink start.
Zone
A collection of all H.323 Terminals, Gateways, and MCUs managed
by a single H.323 Gatekeeper. A zone must include at least one
Terminal and may include LAN segments connected using routers.