1. “That’s P-a-r-l-a-y not P-a-r-l-e-z!” Richard Kett BT ACE

2. This presentation does not imply any intention on the part of BT to implement the Parlay API or any of the functionality described within.

3. Parlay
To use one’s talents to achieve success

4. Aim
To make network capabilities available to 3rd party service providers
To enable them to run their services on operators’ networks

5. Parlay Project Started March 98 5 company, cross industry groupBT
DGM&S Telecom
Microsoft
Nortel Networks
Siemens
Press announcements May 98 and November 98
Created a specification of an open, technology independent, secure, communication services network API

6. Concept
The Telco World of
Networks and Services

7. Concept API The Telco World of Networks and Services
The group is promoting industry acceptance of the Parlay Application Programming Interface (API),
a specification designed to enable carriers and independent software vendors to write applications to provide services across Wireless networks, Internet Protocol (IP)-based networks and the Public Switched Telephone network (PSTN).
The Telco World of
Networks and Services

8. Telco World Today Applications Service Components Physical Networks
Best seen with an example….

9. Telco World Today 800, Personal Numbering Voice messaging...
Authentication, Routing,
Billing, Storage, Configuration...
ISDN, PSTN, IP...
For Applications read Services
For components read SIBs, capabilities or features (both core and service surround)
which operate over a range of networks.

10. Owned and Operated by the Telco
Telco World Today
800, Personal Numbering
Voice messaging...
Authentication, Routing,
Billing, Storage, Configuration...
Owned and Operated
by the Telco
ISDN, PSTN, IP...

11. PARLAY API API Service Components Physical Networks
The API specifies an interface to the service components that is
operator
network
and technology
independent.

12. PARLAY API API App 1 App 2 App 3 App n Service Components
Physical Networks
Opportunity to develop a vast range of new applications

13. Convergence API The IT World Rich in Applications The Telco World
Rich in Networks

14. Public Network Private Network Call Distribution Application API set
Voice
Mail
prompts
WWW
Pages
API set
Agents
Home Agents
Public Network
capabilities
Operational
Support
Caller

15. Public Network Application Parlay API set Network Gateway capabilities
Agents
Network
Gateway
Public Network
Caller
capabilities
Operational
Support
Home Agents

16. Perspectives Service Provider Application Developer Network Operator
End
Customer

17. Perspectives Network Operator
Growth in use of the network
Re-use of common service features
Create the ‘value add’ intermediate market support layer
Regulatory pressures and competition
Network Integrity
Security
Charging & Billing
QoS
Integrity
- FI problem for operator if network is threatened
Security against attack and fraud
- Firewall
- Mediated Gateway Concepts
Billing models
- transactional
- feature driven
- add x% onto call minutes
QoS
- how to formulate, measure and honour SLAs

18. Perspectives Service Provider
Time to market.
Applications can treat networks based upon different technologies in a similar manner.
Services can be offered on and across networks of different kinds (application portability)
Service Interworking

19. Perspectives Application Developer
Whole range of new business opportunities.
Opens up communications service opportunities/possibilities to the majority of software developers.
Opportunities that were
- not previously technically feasible
- not previously financially feasible
Requirements for higher level API
- “plug and play” would be nice
- SDKs and Frameworks to improve
- speed and ease
- robustness of application code

20. Perspectives End Customer
Services integrated with all other software solutions to jointly solve the customer’s real personal and business problems.
Massive market growth in new applications/ services
Enterprise software

21. API Characteristics Object Oriented (OO)
Network & technology independent
Extensible
Secure
Discovery
Managed
API specified in both CORBA and MS IDL (DCOM)
Inheritance of the interfaces supports specialisation of generic services (GCCS -> INAP-1 Call).
Framework provides authentication for secure access
Discovery to locate the service that you wish to manipulate
Service Management
Integrity Management (e.g. network faults, connection failures)
OAM Operations, Administration and Maintenance. (e.g. interface is used to allow the application to synchronise with the system time).

22. The Parlay API working group

23. Phase 2 June 15th, 1999 Parlay Group announces new members
Parlay Phase 2 underway
- mobility
- conferencing
- discovery and security
v1.1 released, v1.2 Sep’99, v2 Dec’99

24. Summary
Parlay describes a network API that would open up network capabilities to 3rd parties.
Parlay changes the business model (separates the network operator from the service provider)
Raises many commercial and technical issues: integrity, security,charging, fraud, QoS & service interworking.

25. Questions ?