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Madsen L., Smith J., Van Meggelen J. — Asterisk: The Future of Telephony
Madsen L., Smith J., Van Meggelen J. — Asterisk: The Future of Telephony



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Название: Asterisk: The Future of Telephony

Авторы: Madsen L., Smith J., Van Meggelen J.

Аннотация:

It may be a while before Internet telephony with VoIP (Voice over Internet Protocol) reaches critical mass, but there's already tremendous movement in that direction. A lot of organizations are not only attracted to VoIP's promise of cost savings, but its ability to move data, images, and voice traffic over the same connection. Think of it: a single Internet phone call can take information sharing to a whole new level.

That's why many IT administrators and developers are actively looking to set up VoIP-based private telephone switching systems within the enterprise. The efficiency that network users can reach with it is almost mind-boggling. And cheap, if the system is built with open source software like Asterisk. There are commercial VoIP options out there, but many are expensive systems running old, complicated code on obsolete hardware. Asterisk runs on Linux and can interoperate with almost all standards-based telephony equipment. And you can program it to your liking.

Asterisk's flexibility comes at a price, however: it's not a simple system to learn, and the documentation is lacking. "Asterisk: The Future of Telephony solves that problem by offering a complete roadmap for installing, configuring, and integrating Asterisk with existing phone systems. Our guide walks you through a basic dial plan step by step, and gives you enough working knowledge to set up a simple but complete system.

What you end up with is largely up to you. Asterisk embraces the concept of standards-compliance, but also gives you freedom to choose how to implement your system. "Asterisk: The Future of Telephony outlines all the options, and shows you how to set up voicemail services,callconferencing, interactive voice response, call waiting, caller ID, and more. You'll also learn how Asterisk merges voice and data traffic seamlessly across disparate networks. And you won't need additional hardware. For interconnection with digital and analog telephone equipment, Asterisk supports a number of hardware devices.

Ready for the future of telephony? We'll help you hook it up.


Язык: en

Рубрика: Технология/

Статус предметного указателя: Готов указатель с номерами страниц

ed2k: ed2k stats

Год издания: 2002

Количество страниц: 405

Добавлена в каталог: 29.06.2007

Операции: Положить на полку | Скопировать ссылку для форума | Скопировать ID
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Предметный указатель
Eval( ) application      
EXEC command      
Exec( ) application      
ExecIf( ) application      
Exit command      
Expressions      
expressions, basic      
expressions, operators      
extconfig.conf file      
Extensions      
extensions reload command      
extensions, added to [internal] context      
extensions, defining in dialplan contexts      
extensions, dialplan contexts      
extensions, invalid entries and timeouts      
extensions, priorities      
extensions, s (start) extension      
extensions, timeout argument for Dial( )      
extensions, unnumbered      
extensions.conf file      2nd
extensions.conf file, context name for SIP channel      
extensions.conf file, dialplan specification      
extensions.conf file, dundi local context      2nd
extensions.conf file, global variables      
extensions.conf file, IAX call to FWD echo test application      
extensions.conf file, IAX FWD incoming calls      
extensions.conf file, instructions to perform inside context on FXO line      
extensions.conf file, parsing of expressions with bison      
extensions.conf file, sample file      
external program, passing call control to      
families (data groupings in AstDB)      
far-end disconnects      
fast busy signal      
FastAGI( ) application      2nd
fax machines      
fear campaign to undermine telephony revolution      
features.conf file      
features.conf file, call parking      
Festival      2nd
Festival( ) application      2nd
Festival, calling from dialplan      
Festival, configuring Asterisk for      
Festival, setting up to use with Asterisk      
Festival, starting the Festival server      
Festival, using with Asterisk, text2wave utility      
festival.conf file      
festival.scm file, altering for use with Asterisk      
fflush command (PHP)      
fflush function (PHP)      
fgets command      
fgets function      
fiber optic circuits      
fiber optic circuits, SONET and OC      
file pointers      
filename, specifying for Playback( )      
find-me-follow-me      
firmware/ directory      
flash (electronic analog phones)      
Flash Operator Panel (FOP)      
Flash( ) application      
ForkCDR( ) application      
FPU (Floating Point Unit)      
FPU, processor selection and      
friend connections (SIP)      
friends      2nd
full-duplex audio communications      
fully qualified domain name (FQDN)      
fully qualified domain name (FQDN), SIP X-Lite client configuration      
functions, dialplan      
FWD (Free World Dialup) account via IAX      
FWD (Free World Dialup) account via IAX, configuring outbound connections      
FWD (Free World Dialup) account via IAX, dialplan configuration for incoming calls      
FWD (Free World Dialup) account via IAX, iax.conf file      
fwrite function      
FXO (Foreign eXchange Office)      
FXO, channel configuration      2nd
FXO, channel configuration, dialplan      
FXO, channel configuration, testing by dialing in      
FXO, channel configuration, Zapata hardware      
FXO, channel configuration, Zaptel hardware      
FXO, channels      
FXO, connection to analog phone line      
FXO, determining port on TDM400P card      
FXS (Foreign eXchange Service)      
FXS (Foreign eXchange Service), channel configuration      
FXS (Foreign eXchange Service), channel configuration, Zapata hardware      
FXS (Foreign eXchange Service), channel configuration, Zaptel hardware      
FXS (Foreign eXchange Service), channels      
FXS (Foreign eXchange Service), connection to analog phone      
FXS (Foreign eXchange Service), determining port on TDM400P card      
FXS (Foreign eXchange Service), dialplan configuration      
FXS (Foreign eXchange Station)      
FXS (Foreign eXchange Station), channel configuration      
FXS (Foreign eXchange Station), ports provided by TDM400P cards      
G.711 codec      
G.723.1 codec
G.726 codec      
G.729 codec      
G.729A codec      
gatekeeper (H.323)      
gateways, telephony      
GCC compiler      
gcc compiler, Asterisk compilation using make program      
gcc compiler, attempting to build Zaptel without      
gcc compiler, installing, with dependencies      
General Peering Agreement (GPA)      
GET DATA command      2nd
GET FULL VARIABLE command      
GET OPTION command      
GET VARIABLE command      
GetCPEID( ) application      
GetGroupCount( ) application      
GetGroupMatchCount( ) application      
getnumber function      
Glare      
Global variables      
global variables, channel for outbound calls      
GNU make program      
GNU tar application, extracting compressed source code      
GNU/Linux      
Golovich, James      
Goto( ) application      2nd
Goto( ) application, repeating greeting after playing back number dialed      
GotoIf( ) application      2nd
GotoIfTime( ) application      2nd
GPA (General Peering Agreement)      
ground start (gs)      
ground start signaling (CAC)      
ground, defined      
Grounding      
grounding, 0V logic reference      
grounding, power supplies      
GSM codec      
GSM codec optimizations      
GSM codec, converting WAV files to      
H.323 protocol      
H.323 protocol, NAT and      
H.323 protocol, security      
hacker's PBX      
handset (analog phone)      
HANGUP command      
Hangup( ) application      2nd 3rd
Hardware      
hardware drivers, Zaptel      
hardware drivers, Zaptel, compiling      
hardware selection      
hardware selection, choosing a motherboard      
hardware selection, choosing a processor      
hardware selection, performance issues      
hardware selection, power supply requirements      
hardware, telephony      
hardware, Zapata      
hardware, Zapata, configuring for FXO channel      
hardware, Zapata, configuring for FXS channel      
hardware, Zaptel      
hardware, Zaptel, configuring for FXO channel      
hardware, Zaptel, configuring for FXS channel      
harmonic noise on electrical circuits      
HasNewVoicemail( ) application      
HasVoicemail( ) application      
HDLC functionality in Zaptel drivers      
head Asterisk      
help command      
high-fidelity voice      
hobby systems      
hobby systems, hardware selection      
hobby systems, system requirement guidelines      
Home automation      
hook switch      
HTML error messages, turning off in AGI PHP script      
HTML error messages, turning off in PHP      
humidity (equipment rooms)      
Hybrid transformer      
IAX (Inter-Asterisk eXchange protocol)      2nd
IAX, channel configuration      
IAX, channel definitions      
IAX, configuring inbound connections      
IAX, configuring inbound connections, dialplan      
IAX, configuring inbound connections, iax.conf file      
IAX, configuring outbound connections      
IAX, future of      
IAX, general settings      
IAX, NAT (Network Address Translation) and      
IAX, register statements      
IAX, retrieving dialplan information from remote Asterisk box      
IAX, security      
iax.conf file      2nd
iax.conf file, configuration to accept calls from FWD users      
iax.conf file, 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      
incoming calls, context for      
incoming calls, 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      
Intel CPUs, IRQ latency and      
Intel CPUs, powerful FPUs      
Interactive Voice Response (IVR)      
Interfaces      
interfaces, configuration files      
interfaces, PSTN      
interfaces, types to which Asterisk can connect      
Interference      
interference, with analog signals      
internal calls, context for      
internal context      
internal context, FXS channel      
internal context, FXS port      
internal context, SIP channel      
International Telecommunication Union (ITU)      
International Telecommunication Union (ITU), closed thinking      
International Telecommunication Union (ITU), 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)      
IP addresses      
IP addresses, domain/realm, SIP X-Lite client      
IP addresses, register statement for FWD IAX server      
IP addresses, SIP endpoints      
IP telephones      
IP telephones, connecting to Asterisk      
IP telephones, definition of a phone call      
IP telephones, echo in      
IP, evolving your old PBX to      
IP, transport mechanism for video-conferencing (H.323)      
IRQs (Interrupt Requests)      
IRQs, latency      
IRQs, motherboard selection, latency and      
ISD, BRI      
ISDN      
ISDN telephones      
ISDN, BRA      
ISDN, BRI      
ISDN, limited standards compliance      
ISDN, PRI      
ISDN, PRI, commands      
ISDN, PRI, libpri library      
ISDN, PRI/PRA      
IVR (Interactive Voice Response)      
jitter buffering (IAX)      
kernel modules, ztdummy      
kernels      
kernels, layers of interaction with Asterisk      
kernels, optimizations for Asterisk      
kernels, Version 2.6, support for Asterisk      
kernels, ztdummy driver and      
kewlstart (ks)      
kewlstart (ks), on FXS channel      
Key Telephone Systems (KTSs)      
keys and key families, deleting from AstDB      
keys/ directory      
KTSs (Key Telephone Systems)      
label argument, GotoIfTime( )      
Label Switched Path (LSP)      
large Asterisk installations, requirements      
large systems      
large systems, processor selection      
large systems, system requirement guidelines      
Last Mile (PSTN)      
latency      
latency, IAX outbound calls      
latency, monitoring between Asterisk server and SIP phone      
laxprov.conf file      
legacy telecommunications equipment      
legacy telecommunications equipment, hardware for Asterisk connections      
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