COMmander 6000/R/RX - Firmware V7.0D - Advanced Information V19 04/2018
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Glossary
Terminology
PoE
Power over Ethernet - method by which a small devices in a network, for
example, VoIP phones, receive power over an Ethernet cable. This benefit
of this is that there are fewer power cables to deal with.
PoE is described in the IEEE 802.3af standard.
PTMP
Point-to-Multipoint - ISDN connection with 3 to 10 independent phone
numbers (MSNs). They can be assigned to one or more devices, including
PBXs.
PTP
Point-to-Point - ISDN connection with Direct Dial In option. A provider
allocates a PBX base number with additional Direct Dial In numbers (DDIs),
e.g., 9200–0. PBXs are usually operated on a PTP connection.
Port
A single PC can simultaneously establish multiple connections and provide
multiple services for other PCs. Ports are used to differentiate these connec-
tions from parallel connections. Due to a common agreement, PCs usually
provide their services on ports 1 to 1023. Outgoing connections are usually
established starting at port 1024. Most services that use the standard port
numbers (for example, web browsers use port 80).
