Telephony Technical Article

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Research-Lab's approach to this topic

Preface

This article is being written in response to the assignment to carryout complete research on the various issues related to the Telephony  for Research-Lab's upcoming product's campaign.

This article is going to cover the important telephony issues, services, products, service providers and Research-Lab's approach to Telephony.

Research is focused on the following topics

Telephony....general definition

The science behind telephones: sound translated into electrical signals, which is transmitted and then translated back into sound. This is also used to refer to computer hardware and/or software that functions like telephone equipment. See also Internet Telephony.

TAPI...Telephony Application Programming Interface 

Telephony API (TAPI) support for programs that control telephony devices and IP-based voice connections on the local computer and through the LAN on servers that are also running the service. The telephony service enables applications to act as clients to telephony equipment such as PBXs, telephones, and modems. The service supports the TAPI under which different wire protocols that communicate with telephony equipment can be supported. These protocols are implemented in Telephony Service Providers (TSPs). The telephony service cannot be stopped if there is another dependent service, such as Remote Access service, currently active. If no other dependent service is running and you stop the telephony service, it will be restarted when any application makes an initialization call to the TAPI interface. If the service is disabled, no program that depends upon it, including modem support, will be able to run.

Telephony Architecture

Telephony Types

  • IP Telephony
  • Computer Telephony
  • Web Telephony 
  • Mobile Telephony
  • Voice Telephony
  • Video Telephony
  • Radio Telephony
  • VoIP Telephony

IP Telephony
IP telephony uses the Internet to send audio between two or more computer users in real time, so the users can converse.

Computer Telephony

Web Telephony 

Mobile Telephony
Mobile telephony gives everyone the opportunity to communicate without being dependent on location, i.e. outside the fixed telephony network. Many people find mobile phones useful, and for some people with disabilities, a mobile phone can be a necessity in certain situations.

Voice Telephony

Video Telephony

Radio Telephony

VoIP Telephony

 

Research topics are as follows

telephony 
ip telephony 
internet telephony 
computer telephony 
telephony integration 
telephony magazine 
computer telephony integration 
net telephony 
telephony software 
mobile telephony 
telephony service 
free internet telephony 
telephony india 
cisco ip telephony 
telephony modem 
telephony in india 
linux telephony 
internet telephony india 
cable telephony 
telephony services 
telephony api 
internet telephony in india 
basic telephony 
free telephony 
telephony gateway 
digital telephony 
telephony application 
telephony card 
web telephony 
windows telephony 
telephony server 
internet telephony service 
pc telephony 
wireless telephony 
voice telephony 
microsoft telephony 
video telephony 
internet telephony magazine 
telephony solutions 
telephony applications 
telephony systems 
voip telephony 
telephony device 
telephony service provider 
telephony cards 
rural telephony 
telephony network 
internet telephony software 
telephony work 
internet telephony gateway 
envision telephony 
telephony providers 
radio telephony 
telephony jobs 
telephony interface 
net telephony india 
telephony equipment 
telephony service providers 
telephony products 
lan telephony 
telephony training 
telephony conference 
fixed telephony 
what is ip telephony 
internet telephony service provider 
java telephony api 
telephony basics 
telephony ip 
telephony linux 
megahertz telephony 
telephony online 
telephony programming 
free net telephony 
ip telephony market 
cisco telephony 
computer telephony integration cti 
telephony world 
internet telephony free 
telephony technology 
telephony hardware 
telephony terms 
web telephony engine 
internet telephony services 
telephony provider 
dialogic telephony 
telephony internet 
telephony uk 
pci telephony modem 
javax telephony 
net telephony in india 
telephony glossary 
what is telephony 
cordless telephony 
telephony tutorials 
packet telephony 
ip telephony gateway 
india internet telephony 
internet telephony service providers 
computer telephony magazine 
telephony dictionary 
ip telephony software 
free ip telephony 
international telephony 
telephony com 
long distance telephony 
tapi telephony 
telephony history 
ip telephony solutions 
telephony devices 
broadband telephony 
telephony switch 
telephony billing 
ip telephony service 
internet telephony conference 
history of telephony 
network telephony 
telephony definition 
ip telephony cisco 
optivity telephony manager 
cti telephony 
telephony standards 
telephony board 
telephony application programming interface 
telephony security 
telephony rates 
forthnet telephony 
telephony boards 
what is internet telephony 
telephony over ip 
another program is using the selected telephony device 
comcast telephony 
telephony at work 
visual basic telephony 
ip telephony troubleshooting 
voip ip telephony 
ip telephony services 
voice over ip telephony 
telephony windows 
56k telephony modem 
telephony forum 
telephony company 
free telephony software 
mac telephony 
ip telephony applications 
telephony news 
telephony mac 
xp telephony 
ip telephony in india 
ip telephony solution 
telephony directory 
telephony networks 
new telephony 
linux ip telephony 
computer telephony solutions 
computer telephony world 
vb telephony 
telephony experts 
56k pci telephony modem 
megahertz telephony modem 
telephony protocol 
cti computer telephony 
telephony fundamentals 
ivr telephony 
internet protocol telephony 
internet telephony sites 
telephony acronyms 
telephony drivers 
ip telephony design 
telephony signaling 
telephony terminology 
enterprise telephony 
bayonne telephony 
ip telephony training 
ip telephony linux 
ip telephony products 
telephony tools 
pc to pc telephony 
avaya ip telephony 
ip telephony security 
telephony concepts 
telephony program 
telephony programs 
telephony cable 
computer telephony world expo 
ip telephony free 
computer telephony systems 
analog telephony 
voip internet telephony 
software telephony 
computer telephony intergration 
telephony 101 
telephony protocols 
ios telephony service 
telephony books 
open source telephony 
telephony routing over ip 
windows xp telephony
voip 
tapi 
voice over ip 
internet telephone 
internet phone 
telephone computer 
internet phones 
voice over internet 
telephone software 
internet telephones 
cti 
3g 
sip 
h 323 
h323 
cti's 
umts 
mgcp 
softphone 
ss7 
pbx 
softswitch 
pstn 
phone calls 
qsig 
7960 
gatekeeper 
voice mail 
wcdma 
isup 
ofdm 
csta 
caller id 
megaco 
data communication 
pingtel 
answering machine 
voicemail 
answering service 
openh323 
net2phone 
h 248 
answer machine 
ivr 
jtapi 
dialpad 
ngn 
phonefree 
asterisk 
q 931 
clarent 
callserve 
7940 
gsm 
callmanager 
radvision 
antenna 
communication 
telecommunication 
2.5 g 
4g 
call manager 
phone systems 
pc2phone 
aplio 
mimo 
mediaring 
data communications 
vsat 
gprs 
3gpp 
unified messaging 
internetphone 
vocaltec 
gphone 
phone 
conversations 
webphone 
spread spectrum 
telephone 
ussd 
buddyphone 
communication systems 
white paper 
calls 
etsi 
voice 
answering 
modem spy 
recording 
overview 
iconnecthere 
ipphone 
go2call 
multipath 
voice and data 
freephone 
netphone 
cdma 
call 
internet answering machine 
last mile 
handover 
antennas 
white papers 
2g 
speak freely 
7910 
ephone 
data rate 
dialer 
intelligent network 
telecommunications 
ivm 
gateways 
autodialer 
iconnect 
inap 
protocol 
interference 
dialers 
ip 
conversation 
communications 
iad 
iptv 
telemetry 
lmds 
interconnection 
wireless 
third generation 
pabx 
telephon 
avaya 
qos 
scada 
answering machines 
protocols 
supervoice 
attendant 
bicc 
avvid 
centrex 
signaling 
end to end 
wlan 
networking 
taping 
conference call 
wireless lan 
internetworking 
networks 
imsi 
callwave 
call waiting 
quicknet 
basics 
call center 
ppt 
infrastructure 
answer 
trunking 
voice over 
sonus 
data transfer 
yagi 
whitepaper 
cisco 
convergence 
architecture 
mobile 
block diagram 
service provider 
network 
transmission 
introduction to 
synchronization 
long distance 
dtmf 
ecma 
technology 
isdn 
mitel 
over the internet 
parlay 
callback 
devices 
introduction 
basics of 
mcu 
roaming 
sdp 
genesys 
implementation 
platform 
specification 
rf