COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.8 - Advanced Information - V02 06/2017
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Glossary
Glossary
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.
POP3
Post Office Protocol, version 3 - ASCII protocol to download e-mails from a
server.
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).
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