| Glossary: I |
| IAD |
Integrated Access Device
|
| ICMP |
Internet Control Message Protocol
|
| ICP |
Integrated Communications Provider
|
| IDR |
Incident Detail Record
|
| IDSL |
ISDN Digital Subscriber Line
|
| Idle code |
"A repetitive pattern to identify an idle channel (typically |
| IEC |
Interexchange Carrier
|
| ILEC |
Incumbent Local Exchange Carrier
|
| ILMI |
Integrated Local Management Interface (protocol)
|
| IMD |
Intermodulation Distortion
|
| Impedance |
Opposition to the flow of current in a line. Excessive impedance can cause signal loss and data errors.
|
| Inband |
A signaling method that sends signals over the same transmission line or circuit as the user's communication. These signals are also in the same frequency band as that provided for the user.
|
| Integrated Services Digital Network (ISDN) |
"A network architecture that enables end-to-end digital connections. The network supports diverse services through integrated access arrangements and defines a limited set of standard |
| Internet |
"A worldwide interconnection of individual networks operated by government |
| Internet Protocol (IP) |
"Part of the TCP/IP family of protocols that describe software that tracks the Internet address of nodes |
| Intranet |
"A private or internal company network that takes advantage of the easy-to-use TCP/IP protocol for file transfer |
| INV SIG |
Inverted Signal
|
| IOR |
Intelligent Office Repeater
|
| IOT |
"Interoperable Object Reference |
| IPR |
Inside Plant Repeater
|
| ISO |
International Organization for Standardization
|
| ISP |
Internet Service Provider
|
| ISU |
Intermediate Switching Unit
|
| ITU-T |
International Telecommunication Union-Telecommunications Standardization Sector
|
| ITSP |
Internet Telephony Service Provider
|
| IWM |
Interactive Workflow Manager
|
| IXC |
Interexchange Carrier |
