VON Europe 1999

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VON Europe 1999 SIP Update Jim Nelson - Founder,
co-CEO
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What is SIP ?

• Session Initiation Protocol (SIP)
• Generic Call Services Protocol
• IETF Proposed Standard (RFC 2543)
• Similar to HTTP

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SIP Components

• User Agents
• Clients to initiate calls and servers to accept
  or reject calls
• Servers
• Proxy
• Redirect
• Registration

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Value of SIP

• Interoperability
• User agents for intra-MGC communications
• Servers that span carrier networks
• Designed for IP Networks
• Platform for Enhanced Services
• Scalable

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SIP Is A Platform

• Defined Building Blocks Enable Rapid Innovation
• Extensibility Mechanisms
• Security
• Media and Transport Independent

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SIP Is Scalable

• Minimal Resource Requirements
• Stateless servers
• Minimal Bandwidth Overhead
• Well suited for endpoint devices
• Low Call Setup Times
• Text-based Encoding
• Designed for IP Networks

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SIP Enables Applications

• Billing
• Directory Services
• Internet Call Waiting
• Collaboration
• eCommerce
• Click-N-Call

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SIP Interoperability Update

• SIP Bake-Off Event
• April, 1999 - 15 Companies Test Interoperability
  on 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

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SIP and MEGACO - Why Both ?

• Complimentary Technologies
• MEGACO
• IETF draft
• Common media control interface
• SIP
• Call Services
• Support the Delineation of Control from Media

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SIP in a VOIP Network
SIP Proxy
sigtran
Media Gateway Controller
MGC
sigtran
SIP
Signaling Gateway
SG
to SS7
to SS7
Megaco
IP Network
Megaco
MG
RTP
Media Gateway
to PSTN
to PSTN
SIP Client
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SIP Current Events

• Call Processing Language - CPL
• Language that Works with SIP to Create Enhanced
  Services
• XML-based
• IETF Sponsored
• Multi-part body
• Support for MIME types
• SIP used to carry ISUP between MGCs

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dynamicsofts SIP Effort

• Drive Standards
• Drive Increased Scalability and Interoperability
• Deliver Enabling Technologies to Build
  Applications

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jSIPTM Implementation

• Rich API Set for Flexibility
• Java and C/C
• Features
• Highly Scalable
• Platform independent
• Clients and servers
• Version 2.1 Shipping Today
• Designed to deploy SIP rapidly

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Information Resource

• www.dynamicsoft.com
• Booth 26
• jnelson_at_dynamicsoft.com
• p 1 732.741.7244