I

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IAX (Inter-Asterisk eXchange protocol) 2nd
        channel configuration
        channel definitions
        configuring inbound connections
                dialplan
                iax.conf file
        configuring outbound connections
        future of
        general settings
        NAT (Network Address Translation) and
        register statements
        retrieving dialplan information from remote Asterisk box
        security
iax.conf file 2nd
        configuration to accept calls from FWD users
        configuring to place call on FWD network
iax.conf.sample configuration file
iax2 debug command
iax2 no debug command
IAX2 protocol, RSA key checks
iax2 provision command
iax2 show cache command
iax2 show channels command
iax2 show firmware command
iax2 show peer command
iax2 show peers command
iax2 show provisioning command
iax2 show registry command 2nd 3rd
iax2 show stats command
iax2 show users command
iax2 trunk debug command
IAX2Provision( ) application
images/ directory
ImportVar( ) application
inbound IAX connections, configuring
include context command
includes
incoming calls
        context for
        users
incoming context (FXO interface)
indication add command
indication remove command
indications .conf
indications.conf file
init keys command
initialization scripts, installing with make config
initialization scripts, Red Hat-style
installing Asterisk, specifying directory
integration of communications technologies
Intel CPUs
        IRQ latency and
        powerful FPUs
Interactive Voice Response (IVR)
interfaces
        configuration files
        PSTN
        types to which Asterisk can connect
interference
        with analog signals
internal calls, context for
internal context
        FXS channel
        FXS port
        SIP channel
International Telecommunication Union (ITU)
        closed thinking
        H.323 protocol
Internet connectivity with ISDN-BRI circuit
Internet gateways to telephony services, locating
Internet Low Bitrate Codec (iLBC)
Internet Relay Chat (IRC) channels
Internet transport protocols, real-time media streaming and
invalid entries, handling
INVITE requests in DoS attacks
invites (in SIP)
IP (Internet Protocol)
        evolving your old PBX to
        transport mechanism for video-conferencing (H.323)
IP addresses
        domain/realm, SIP X-Lite client
        register statement for FWD IAX server
        SIP endpoints
IP telephones
        connecting to Asterisk
        definition of a phone call
        echo in
IRQs (Interrupt Requests)
        latency
        motherboard selection, latency and
ISD, BRI
ISDN
        BRA
        BRI
        limited standards compliance
        PRI
                commands
                libpri library
        PRI/PRA
ISDN telephones
"It Still Does Nothing" (ISDN)
IVR (Interactive Voice Response)