|
P
|
| PABX |
Private Automatic Branch Exchange |
| PAD |
Packet Assembler/Disassembler |
| PBX |
Private Branch Exchange |
| PCI |
Pre Connection Inspection |
| PDN |
Private Data Network |
| PIN |
Personal Identification Number |
| POT |
Plain Ordinary Telephone or SLT |
| PRI |
See Primary Rate Interface |
Primary rate
interface |
30 bearer channel interface to ISDN |
| Prime Telephone |
A domestic telephone which can be connected
an operate without the need for additional sources of
power or continue to operate if its power source fails |
| PSPDN |
Packet Switched Private Data Network |
| PSTN |
Public Switched Telephone Network |
| Pulse Dialling |
Dialling by sending pulses representing
the numbers required to the exchange |
| PXML |
Private Exchange Master List |
|
Q
|
| Q-SIG |
An inter-system networking protocol based
on Euro ISDN for allowing customer systems at separated
office to interact and communicate with each other |
|
R
|
| RECALL |
A signal to the telephone system originally
to regain a previously held call, but today can also prefix
a system command or feature code |
| REDIAL |
Re dials the last number dialled from the
telephone |
| REN |
Ringing Equivalence Number, a measure of
the amount of power a telephone will consume when ringing.
Most modern equipment has a REN of 1. |
Ringing Equivalence
Number |
See REN |
|
S
|
| SLT |
Single Line Telephone |
| Speed Dial |
See Abbreviated Dial |
| SSAC13 |
Signalling System Alternating Current No.
13 |
| SSAC15 |
Signalling System Alternating Current No.
15 |
| SSDC10 |
Signalling System Direct Current No. 10 |
| SSDC5 |
Signalling System Direct Current No. 5 |
| STD |
Subscriber Trunk Dialling |
| System Software |
The fixed pre-stored instructions
used by the CPU to control the equipment |
|
T
|
| TAM |
Telephone Answering Machine |
| TAPI |
Telephony Applications Programming Interface
for CTI |
| TDM |
Time Division Multiplexing |
| TELTAM |
Telephone with built in answering machine |
| Time Break Recall |
A measured break in connection to signal
from telephone to the exchange/PBX to hold a call or access
a feature |
| TSAPI |
Telephone System Applications Programming
Interface for CTI |
|
U
|
| UTP |
Unshielded Twisted Pair, a wiring type used
for telephone and computer networking infrastructure and
Category 5 cabling systems |
|
V
|
| Voice Announce |
A simplified Automated Attendant
which does not offer the message taking facility if the
busy destination is busy |
| Voicemail |
A system for recording messages
for a large number of users automatically and then delivering
the messages to the users concerned |
.gif){kind=small}