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G.729
An International Telecommunications Union standard for voice
algorithm.
H.323
An International Telecommunications Union standard for multimedia
communications over packet-based networks.
Inter-Asterisk eXchange
IAX
A VoIP protocol used by Asterisk. It is used to enable VoIP connections
between Asterisk servers, and between servers and clients that also use
the IAX protocol.
iLBC
internet Low Bitrate Codec
A free speech codec used for voice over IP. It is designed for narrow band
speech with a payload bitrate of 13.33 kbps (frame length = 30ms) and
15.2 kbps (frame length = 20 ms).
ILEC
incumbent local exchange carrier
The LECs that were the original carriers in the market prior to the entry of
competition and therefore have the dominant position in the market.
interface
A point of contact between two systems, networks, or devices.
Release 1.20
Appendix D Glossary and Acronyms
Digium, Inc.
Page 165
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