TransNexus CEO to speak at VoIP Developer Conference

(San Jose, CA - August 4, 2004) - TransNexus CEO, Jim Dalton, will speak at the TMC VoIP Developer Conference the the DoubleTree Hotel in San Jose, CA on Wednesday 9:15-10:00 am. (for more information see www.voipdeveloper.com )

Introduction

Peer to peer SIP communications promise greater network efficiencies and simpler operations.  However, this same enabling technology raises a major business issue for large VoIP carriers who manage multi-lateral interconnection among a large number of service provider domains.  The issue is: How does the inter-exchange VoIP carrier realize the benefits of peer to peer communications within the telephone business model which requires secure inter-carrier routing, access control and accounting (call detail records).

A solution to this problem, deployed by major VoIP carriers such as ATT, NTT, MCI and Primus is based on the Open Settlement Protocol (OSP).  In the OSP model, the VoIP inter-exchange carrier is the common certificate authority for all peers.  By using standard Public Key Infrasturcture (PKI) technology, which is widely used by financial institutions, VoIP carriers can securely authorize and account for peer to peer communications over the Internet without the expense and inefficiency of deploying a proxy to control the peer to peer communication.

OSP is a global OSS/BSS protocol managed by the European Telecommunication Standards Institute (ETSI).  Version 1 of OSP was ratified in 1998 and version 4 of OSP is now being expanded to provide greater support for wireless and video applications.  The OSP protocol is widely supported by major VoIP vendors such as Alcatel, Cisco, Ericsson, UTStarcom and others.

Objective

The objective of this presentation is to educate SIP developers on how to implement OSP in applications so service providers can securely manage and bill for peer to peer communications.

Course Agenda

1. Overview of OSP protocol
   1. XML format
   2. HTTP or SSL/TLS transport
   3. Message examples
2. Overview of the OSP enabled VoIP carrier as a certificate authority
   1. How PKI works
      1. Public / Private key
      2. Digital certificate
      3. Non-repudiation
3. SIP routing with OSP.
   1. E164 numbers
   2. sip uri
   3. tel uri
   4. enum
   5. Look ahead routing
4. Inter-domain access control for peer to peer SIP communications.
   1. How digitally signed access tokens work
   2. Look ahead routes embedded in token
5. Accounting for peer to peer SIP communications.
   1. OSP standard format of Usage Indication messages (CDRs)
6. Where to find open source resources for implementing peer to peer sip applications with OSP.
   1. Source code
   2. Documentation
   3. Test tools