PPP
Point-to-Point Protocol
PPP authentication
Security mechanism. A method of authentication using passwords in
PPP.
PPPoA
Point to Point Protocol over ATM
PPPoE
Point to Point Protocol over Ethernet
PRI
Primary Rate Interface
Primary Rate Inter-
face (PRI)
ISDN subscriber connection. The PRI consists of one D channel and
30 B channels (in Europe). (In America: 23 B channels and one D
channel.) There is also the ISDN Basic Rate Interface.
Protocol
Protocols are used to define the manner and means of information
exchange between two systems. Protocols control and rule the
course of data communication at various levels (decoding, address-
ing, network routing, control procedures, etc.).
Proxy ARP
ARP = Address Resolution Protocol
PSN
Packet Switched Network
PSTN
Public Switched Telephone Network
PVID
Port VLAN ID
R key
Telephones that have a R key (inquiry key) can also be connected
to a PBX. In modern telephones, the R key triggers the hook flash
function. This is required for use of performance features in T-Net
such as inquiry/brokering and three-party conference.
RADIUS
Remote Authentication Dial In User Service
RADSL
Rate-Adaptive Digital Subscriber Line
RAS
Remote access service
Real Time Clock
(RTC)
Hardware clock with buffer battery
Receiver volume
Function for controlling the volume in the telephone receiver.
Reconnection on the
bus (parking)
For a point-to-multipoint connection, enables the terminal connec-
tion to be reconnected to another ISDN socket during the telephone
call.
Glossary
Teldat GmbH
580
bintec Rxxx2/RTxxx2
