1. Parlay/OSA: open APIs for service development
Damian O’Neill, Chair 3GPP CT5
Ultan Mulligan, ETSI PTCC
Acknowledgements:
Chelo Abarca, RIM, Andy Bennett, Lucent, Ard-Jan Moerdijk, Ericsson, Musa Unmehopa, Lucent Jeff Popoff, Redknee, Marc Leclerc, Ericsson

2. Outline 1- What is OSA/Parlay? 2- OSA in 3GPP and IMS
3- Under the hood
- Framework and SCFs
- Parlay X Web Services
4- Reference

3. What is OSA?
A mediator API between Telecom networks and Operator or 3rd Party applications
Secure interface between Network Operators and Application Servers.
Open standards (specified by the Parlay Group, ETSI and 3GPP).
Raises programming abstraction level and allows multi-network applications.
Application Server/
Applications
OSA
API
Operator’s
(Multi-) Network
infrastructure

4. Bringing Telecoms and IT Together
Developed by Operators, Independent Software Vendors, Enterprises and System Integrators
Addressing the needs of multiple customer groups
Wide Range of Applications
Developed using IT technology and tools, using the power of the network
Abstract the functions of the network, and simplify development
The Parlay/OSA API
Common Network Capabilities
Fixed, Mobile, 3G, Wi-Fi
Open standard API, created by ETSI, Parlay and 3GPP
Supporting the same services on multiple networks reduces operating costs, eases migration and increases market share

5. Other Network Operator / MVNOs
OSA/Parlay Scenario
Other Network Operator / MVNOs
Network Operator
Internal
Applications
Parlay/OSA
SCS
Parlay
ASP
SMS
Parlay
MMS
WAP
ASR/TTS
MPC
Signaling
&
Control
Enterprise
Corporate
Database
Applications
Access Networks

6. Outline 1- What is OSA/Parlay? 2- OSA in 3GPP and IMS
3- Under the hood
- Framework and SCFs
- Parlay X Web Services
4- Reference

7. OSA/Parlay Standardisation
OSA specification and standardisation is a joint effort by the following:
- 3GPP CT5
- ETSI TISPAN OSA Project
- The Parlay Group
The objective is to have a single API for the whole developer community
OSA = Parlay
- All meetings are joint meetings (Joint Working Group)
The joint work is based on a common (UML) model

8. OSA/Parlay Standardisation #2
JWG meets 4 times/year:
2 with 3GPP CT WGs, 2 with Parlay Group,
c. 20 delegates & 100 Tdocs/meeting
Next meeting: October 2006, at ETSI
Following meeting co-located with 3GPP CT WGs, 5-8 Feb 2007
Using 3GPP working methods, Tdoc numbering, & MCC support
Next meeting invite and Tdocs:

9. 3GPP2 And The Joint Working Group
3GPP2 have adopted OSA/Parlay
No separate specifications
3GPP2 requirements brought to JWG
3GPP2 differences listed in annex to 3GPP specs
Only scope/references differences to date

10. OSA and IMS
OSA is one of the service environments defined in IMS

11. OSA and IMS: Bridging multiple domains
3rd party
Applications
+ Content
Applications
+ Content
Web Services Parlay X
Parlay/OSA
Unprotected
Applications + Content
Protected
Walled garden
Web Service GW IN
Parlay/OSA GW
Video +
Messaging
Group Management
Presence +
Applications
Multimedia
Applications
Service Layer
SIP AS
Vendor B
Operator SIP AS
SS7, MM7..
ISC
ISC
CS Domain
IMS Core Network

12. OSA Parlay/Parlay-X Proposition
IN Enhancement
or SCP Replacement
Convergence
and Migration to IP
SDP (Service Delivery Platform)
Web Services Network Integration
Network API OSA Parlay/Parlay-X Gateways
Fixed, Mobile, WiFi – Circuit switched, SIP

13. Outline 1- What is OSA/Parlay? 2- OSA in 3GPP and IMS
3- Under the hood
- Framework and SCFs
- Parlay X Web Services
4- Reference

14. Choices, Choices OSA/Parlay full API: Parlay X CORBA IDL specification
Web Services technologies
J2SE API specification
J2EE API specification
Parlay X
Abstraction, simplified interfaces
Web Services only

15. Parlay/OSA Terminology: SCSs and SCFs
- The Parlay/OSA Gateway consists of several Service Capability Servers (SCS): functional entities that provide Parlay/OSA interfaces towards applications.
Interface
SCF
- Each SCS is seen by applications as one or more Service Capability Features (SCF): abstractions of the functionality offered by the network, accessible via the Parlay/OSA API.
SCS
- The Parlay/OSA SCFs are specified in terms of interface classes and their methods

16. OSA: Framework + A Set Of SCFs
Application
server
Application
OSA API
interface
class
User
Call control
framework
Location
Service Capability Servers
Not standardized
OSA Internal API
WGW
HLR
CSE
Servers
WPP
E.g. Location server
Billing server
One of the Parlay/OSA SCSs is called the Parlay/OSA Framework, and is always present, one per network

17. The Parlay/OSA Framework
- control of access to the network
- integrity management
- discovery of network functionality
Client Application 1 2 2
Enterprise Operator
Registered Services
Framework
Call
Control
Mobility
etc 4 3
- Application subscription
to services
- SCF registration
- support of multi-domain

18. Framework Features Authentication Load & Fault Management
Event Notification
Service Agreement Management
Grouped Contract Management
SCF Management
Registration
Discovery
Factory

19. OSA/Parlay APIs Call Control Messaging Generic Location & User Status
Multi-Party
Conference
Multi-media
User Interaction
Policy Management
Charging
Account Management
Messaging
Location & User Status
Presence & Availability
Connectivity Management
Terminal Capabilities
Data Session Control
Service Broker

20. Outline 1- What is OSA/Parlay? 2- OSA in 3GPP and IMS
3- Under the hood
- Framework and SCFs
- Parlay X Web Services
4- Reference

21. The Motivation for Parlay X: Web Services for Telecom
There is a requirement to publish the capabilities of the network for software developers
There is a demand for enterprise applications to exploit the capabilities of the telecom network
The Real-Time Enterprise (Gartner)
Web Services is a key software development technology:
Number of Developers
Parlay-X
millions
Parlay/OSA
thousands
INAP, SIP
thousand
Expressive Power
Parlay-X defines a set of easy-to-use Web Services, which provide simple and high level access to widely used telecommunications functions
Third Party Call Control, Network Initiated Third Party Call Control, SMS, Multimedia Messaging, Payment, Account Management, User Status, User Location

22. The OSA/Parlay APIs Name Description Usage OSA/Parlay
Rich set of telecom APIs, for use in CORBA (C, C++), Java and web services environments. Several hundred methods.
Suitable for use by professional software developers.
Suitable for developing a pre-paid application.
Parlay-X Web Services
Set of high-level, simple to use telecom APIs, for use in a Web Services environment. 16 interfaces.
Suitable for use by web developers. Designed for use with an Integrated Development Environment (IDE).
Suitable for developing a ‘call-me’ button on a web page.

23. Parlay Web Services
Defines a set of business models for using Web Services in a telecom environment.
Mobile Operator Cross Network Access
Network Operator and 3rd Party Integration
Enterprise Application Extension
Open Standard key to interoperability
Leading to:
Application Deployment Infrastructure for Parlay Web Services
Comparison of OSA/Parlay and Web Services Architecture
WSDL Style guide
WSDL version of OSA/Parlay Specifications

24. Parlay and Parlay X

25. Web Services Web Service Registry UDDI Discovery Point Find Publish
Policy Publishing
Discovery Point
Find
Publish
Web Service Provider
Web Service
Requester
Application
Bind
Binding Point
Policy Negotiation
Access
Access Point
Policy Enforcement
Manage
Operational Point

26. Web Services Technologies
ParlayX and Parlay WS use SOAP over HTTP
WSDL used for interface definitions
XML Schema for data types
WS-Security
WS-I Basic Profile compliance required
Links to these specifications at the end

27. Parlay X APIs Call Control Short Messaging 3rd Party Call
Call Notification
Call Handling
Audio Call
Multimedia Conference
Address List Management
Presence
Message Broadcast
Short Messaging
Multimedia Messaging
Location & User Status
Presence & Availability
Connectivity Management
Terminal Status
Terminal Location
Payment
Account Management
Geocoding
Application Driven QoS

28. Outline 1- What is OSA/Parlay? 2- OSA in 3GPP and IMS
3- Under the hood
- Framework and SCFs
- Parlay X Web Services
4- Reference

29. Specifications 3GPP ETSI Description TS 22.127 (Rel-4, 5, 6,7)
EG (4 parts)
OSA Requirements
TS (Rel-4, 5) -
VHE/OSA Architecture
TS (Rel-6, 7)
OSA Architecture
TS Rel-4 ES
OSA API Rel-4, Parlay 3
TS Rel-5 ES
OSA API Rel-5, Parlay 4
TS Rel-6 ES
OSA API Rel-6, Parlay 5
TS Rel-7 ES
OSA API Rel-7, Parlay 6
TS Rel-6 ES
Parlay X 2
TS Rel-7 ES
Parlay X 3
TR (Rel-4, 5, 6, 7)
OSA Mapping Reports TR
Parlay X Mapping

30. Links General information:
Overview and links to all OSA Specifications:
3GPP CT5 specifications:
The Parlay Group

31. Web Services Useful Links
Basic Web Services information/tutorials:
W3C
WSDL 1.1:
SOAP:
WS-I
WS-I Basic Profile:
OASIS
WS Security:
UDDI:

32. 3GPP – ETSI Differences TS 29.199 Parlay X: No Differences
TS OSA/Parlay base APIs
Part 3 Framework: No Framework to Enterprise Operator interfaces in 3GPP
Part 4-5: No Conference Call Control in 3GPP
Part 6: No User Location Emergency or User Binding interfaces in 3GPP
Part 9: Not in 3GPP
Part 10: Not in 3GPP
Part 14: Agent Presence interface not in 3GPP

33. Thank you!