VON Europe 1999
SIP Progress Report
Navigating the Crossroads to Interoperability
Jim Nelson - Founder, co-CEO
Why Is Interoperability Critical ?
Leader of
Java-based
software
applications
for converged
networks
 Interoperability Allows Service Providers
 To freely choose what equipment components are
best for their network deployment
 Interoperability Allows Equipment
Manufacturers
 To provide differentiated solutions to end customers
www.dynamicsoft.com
Specific Interoperability Challenges
Leader of
Java-based
software
applications
for converged
networks
 Between Multiple Equipment Vendors
 In today’s environment, carriers will deploy equipment
from multiple vendors
 Between Different Networks
 Need bridge between different carrier networks
www.dynamicsoft.com
Technical Challenges
Leader of
Java-based
software
applications
for converged
networks
 Media Gateway Controller (MGC) to
Media Gateway (MG)
 MGC to MGC
 MG to MG
www.dynamicsoft.com
What is SIP ?
Leader of
Java-based
software
applications
for converged
networks
 Session Initiation Protocol (SIP)
 IETF Proposed Standard (RFC 2543)
 Generic Call Services Protocol
 Similar to HTTP
www.dynamicsoft.com
SIP’s Role in Interoperability
Leader of
Java-based
software
sigtran
applications
Signaling
for converged
Gateway
to SS7
networks
SIP
Proxy
Media
Gateway
Controller
Megaco
to PSTN
sigtran
SIP
MGC
SG
IP Network
Media
Gateway
RTP
Megaco
MG
to PSTN
SIP
Client
www.dynamicsoft.com
to SS7
SIP Components
Leader of
Java-based
software
applications
for converged
networks
 User Agents
 Clients to initiate calls and servers to
accept or reject calls
 Servers
 Proxy
 Redirect
 Registration
www.dynamicsoft.com
SIP Is A Platform
Leader of
Java-based
software
applications
for converged
networks
 Defined Building Blocks Enable Rapid
Innovation
 Extensibility Mechanisms
 Security
 Media and Transport Independent
www.dynamicsoft.com
Value of SIP
Leader of
Java-based
software
applications
for converged
networks
 Interoperability
 User agents for intra-MGC communications
 Servers that span carrier networks
 Designed for IP Networks
 Platform for Enhanced Services
 Scalable
www.dynamicsoft.com
SIP Is Scalable
Leader of
Java-based
software
applications
for converged
networks
 Minimal Resource Requirements
 Stateless servers
 Minimal bandwidth overhead
 Well suited for endpoint devices
 Low Call Setup Times
 Text-based Encoding
www.dynamicsoft.com
SIP Enables Applications
Leader of
Java-based
software
applications
for converged
networks
 Billing
 Directory Services
 Internet Call Waiting
 Collaboration
 eCommerce
 Click-N-Call
www.dynamicsoft.com
SIP Interoperability Update
Leader of
Java-based
software
applications
for converged
networks
 SIP Bake-Off Events
 April 1999 - 15 Companies test interoperability
between their equipment
 dynamicsoft, Nortel, Ericsson, 3 Com, HP, Ellemtel,
Dialogic, BT, PingTel, Alcatel, Columbia University,
MCI, Cisco, Lucent Technologies, MediaTrix
 Call setup interoperability demonstrated in 2 day event
 Next Bake-off planned for August in New York, USA
www.dynamicsoft.com
What Is MEGACO ?
Leader of
Java-based
software
applications
for converged
networks
 Media Gateway Controller Protocol
 MGCP, MDCP, H.gcp
 Common Media Control Interface
 Moving Forward As The Recognized Standard
 Version 02 Expected This Week
www.dynamicsoft.com
MEGACO Interoperability
Leader of
Java-based
software
applications
for converged
networks
Drive Standards from the MGC to the MG
Vendor A MGC
Vendor A MG
www.dynamicsoft.com
Vendor B MG
Vendor C MG
Interoperability Next Steps
Leader of
Java-based
software
applications
for converged
networks
 More Interoperability Events
 More Equipment Manufacturers and Service
Providers Actively Testing Interoperability
 Active Participation by Leading Standards
Bodies and Consortiums
www.dynamicsoft.com
dynamicsoft’s SIP Effort
Leader of
Java-based
software
applications
for converged
networks
 Drive Standards
 Drive Increased Scalability and
Interoperability
 Deliver Enabling Technologies to
Build Applications
www.dynamicsoft.com
jSIP Implementation
TM
Leader of
Java-based
software
applications
for converged
networks
 Rich API Set for Flexibility
 Java and C/C++
 Internet Approach
 Platform independent
 Clients and servers
 Security and firewall friendly
 Version 2.1 Shipping Today
 Designed to deploy SIP rapidly
www.dynamicsoft.com
Information Resource
Leader of
Java-based
software
applications
for converged
networks
www.dynamicsoft.com
Booth #26
 jnelson@dynamicsoft.com
 p: +1 732.741.7244
www.dynamicsoft.com