| IEEE | See Institute of Electrical and Electronic Engineers.
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| ILEC | See Incumbent Local Exchange Carrier.
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| Incumbent Local Exchange Carrier (ILEC) | In the Telecommunications Act of 1996 with respect to an area, the Incumbent Local Exchange Carrier is defined as the Local Exchange Carrier that, on the date of enactment of the Act, provided telephone exchange service in that area; for example, Verizon.
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| Integrated Services Digital Network (ISDN) |
A widely available high bandwidth switched network service providing end-to-end
digital connectivity over standard phone lines for simultaneous transmission
of voice and data. There are two levels of service:
- Basic Rate Interface-ISDN (BRI-ISDN)--provides for digital transmission
of two 64 kbps bearer channels and one 16 kbps data and signaling channel
(2B+D).
- Primary Rate Interface-ISDN (PRI-ISDN)--provides for digital transmission
of twenty three (23) 64 kbps bearer channels and one (1) 64 kbps data and
signaling channel (23 B+D).
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| Internet Service Provider (ISP) | A vendor that provides direct
access to the Internet, and services such as email. The user accesses
the ISP by dialing up through a personal computer and modem, or through
a dedicated line. Also known as an Internet Access Provider (IAP).
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| ISDN | See Integrated Services Digital Network.
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| IVR |
Interactive Voice Response (IVR) is a term used to describe a system to automatically manage incoming calls. An IVR
can link phone callers (voice and/or touchtone) with a computer
database. It can prompt the caller with a question, collect caller responses, access the company's database and
provide a caller with the information they are seeking. It can also
take information from the caller, convert it to data and input that
data to the database.
An IVR can also place outbounce calls. Most vertical voice telephony solutions are an IVR with some business rules applied.
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Glossary