Internet and Telephony

1
Internet and Telephony

• Kwan Hong Lee
• Jonathan Lin

2
Introduction

• Goal
• Integrate telephone network and the Internet
• Motivation
• Great potential in applications that make use of
  this integration

3
JTAPI Architecture
4
How does it work?

• PBX Switch
• Telephony Server
• JTAPI

5
PBX Switch

• Lucent Generic 3 Switch
• Provides telephony services
• call management, billing, call conferencing etc.
• Very complicated stuff
• Currently three analog phones connected

6
Telephony Server

• Telephony Services Module
• Provides communication between applications and
  switch driver
• Routes messages and events
• Switch driver
• Terminates CTI link and protocol
• map CTI protocol to TSAPI

7
Java Telephony API

• Telephony application development made easier
• object oriented, reusable, cross platform
• Integrates telephony services with web
  applications
• Telephony services can be controlled through the
  Internet
• applets

8
JTAPI Core Extensions

• java.telephony
• java.telephony.callcontrol
• placing calls on hold, transferring telephone
  calls, and conferencing telephone calls
• This package also provides a more detailed state
  model of telephone calls
• java.telephony.callcenter
• Routing, Automated Call Distribution
• (ACD), Predictive Calling, and associating
• application data with telephony objects
• java.telephony.media
• java.telephony.privatedata

9
TSAPI

• Vehicle that JTAPI uses to communicate with
  Telephony Services drivers
• API that allows applications to control the PBX
  switch
• to provide telephony services, call control
  services, call/device monitoring services, and
  query services

10
ASAI

• Communications interface that allows applications
  to access switch features and control switch
  calls
• Implemented using Ethernet interface