Scott Hoffpauir BroadSoft, Inc' Vice President, Engineering

1
The Enhanced Services Layer in a Distributed
Packet Network

• Scott HoffpauirBroadSoft, Inc.Vice President,
  Engineering
• OPENSIG
• October 15, 1999

2
Where Do Enhanced Services Fit?
3
Baseline Architecture
4
Components
5
Application Server
Application Server
Enhanced services, residing on an application
server, are separated from basic call functions
6
Application Server Connectivity
7
Call Flow Signaling Only
Call Signaling Through an Application Server
8
Call Flow Signaling Only
Call Signaling Through an Application Server
9
Call Flow Signaling Only
Call Signaling Through an Application Server
10
Call Flow Signaling Only
Call Signaling Through an Application Server
11
Service Flow Signaling and Bearer Only
Call Signaling and Bearer Through an Application
Server
12
Service Flow Signaling and Bearer Only
Call Signaling and Bearer Through an Application
Server
13
Service Flow Signaling and Bearer Only
Call Signaling and Bearer Through an Application
Server
14
Service Execution
Application Server
Execution Environment
CallMgmtSystem
MediaGatewayController
Packet Network
Multimedia TerminalAdapters
Media Gateways
15
Service Creation

• Services are atomic contain all data, logic and
  management functions
• Built using components from reusable component
  library
• Java based similar to applet development
• Utilize off-the-shelf development tools such as
  JBuilder, Visual Café
• Utilize test harness fully test service outside
  of system before deploying

Component Library
Protocol
Management
Database
Macro
16
Enhancing Services
Services are constructed using reusable
components, allowing quick and inexpensive
deployment of new services
A new and different service can be easily created
byadding components to an existing service
17
Service Management

• End User Access
• User ID and Password Login
• Activate/Deactivate Services
• User Interaction
• Modify Profile
• Monitor Account
• Purchase Services
• Online Help
• Click-to-Call Assistance
• Service Provider Access
• Subscriber Security Control
• Add/Delete/Modify Services and Subscribers
• Modify and Monitor Interfaces and System Data
• Monitor System and Service Statistics and Events

Service Provider Web or OSS Access
End UserWeb Access
Application Server
Web Server
Service
Service
Subscription
Subscription
18
Summary

• Enhanced services are key to the success of
  packet telephony

• Enhanced service layer provides separation
  between basic call functions and enhanced services

• Application servers can be used to augment
  entities providing basic call control functions

• Application servers can be used across different
  architectures (H.323, MGCP)

• SIP is a simple, open, and well-defined interface
  encouraging third-party application services and
  vendor independence

19
Scott HoffpauirBroadSoft, Inc.200 Perry
Parkway, Suite 1Gaithersburg, MD 20877(301)
977 4295www.broadsoft.comscott_at_broadsoft.com
The Enhanced Services Layer in a Distributed
Packet Network