Zhone IMACS 8000 User Manual page 774

Model No.
Running Head
A program used to test IP-level connectivity from one IP address to another.
PLAR
Private Line Automatic Ringdown
PLR
Pulse Link Repeater
POP
Point of Presence, usually a telephone carrier office.
POTS
Plain Old Telephone Service
PPO
PPhone Foreign Exchange Office card. An interface at the end of the FX line connected to
DMS SuperNode Switch.
PPP
Point-to-Point Protocol
PPS
PPhone Foreign Exchange Station Card. An interface at the end of the FX line connected to
MBS.
protocol
Procedure or set of rules for communication between two devices.
PSTN
Public Switched Telephone Network.
PTT
Postal, Telephone, and Telegraph authority
PVC
Permanent Virtual Circuit
E-16 Reference Guide