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Presents Fall Forum 2002

Presents Fall Forum 2002. VoIP Peering. Presented by Dan Dearing Vice President of Marketing NexTone Communications. VoIP Peering. Drivers Expanding VoIP networks and applications fueled by VoIP growth within the enterprise Architecture Essentially a back-to-back UA

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Presents Fall Forum 2002

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  1. Presents Fall Forum 2002

  2. VoIP Peering Presented by Dan Dearing Vice President of Marketing NexTone Communications

  3. VoIP Peering • Drivers • Expanding VoIP networks and applications fueled by VoIP growth within the enterprise • Architecture • Essentially a back-to-back UA • Present Day Applications • VoIP today, multimedia applications in the future. IMTC Fall Forum – November 2002 – New York, NY, USA

  4. Session Controller • Definition: SC = Layer 5 router (flow-through or flow around) • SC Vendors: NexTone, Acme Packet, Kagoor • QoS management on IP backbone or Internet • H.323/SIP security management • Protocol Conversion e.g SIP <-> H.323 • Inter-operability between vendors • Policy based routing IMTC Fall Forum – November 2002 – New York, NY, USA

  5. The Role of the Enterprise The Enterprise is fueling VoIP growth: • PBX Vendors, such as Avaya, Alcatel, and Nortel, are IP enabling their products with H.323 VoIP trunk cards. • Cisco is shipping 2500 IP (H.323 and SIP) phones per day. • Microsoft is bundling a SIP UA with Windows XP. Yankee Group projects that 28% of all business lines will support VoIP by 2005 IMTC Fall Forum – November 2002 – New York, NY, USA

  6. Carrier’s Response Carriers are moving towards VoIP: • Worldcom’s Worldcom Connections focuses on delivering VoIP services to the enterprise • Sprint has announced that it will offer managed VoIP services for the enterprise • AT&T has publicized that by 2010 all of its voice traffic will be carried by IP. IMTC Fall Forum – November 2002 – New York, NY, USA

  7. International Carrier International Carrier International Carrier IP IP IP IP IP IP IP IP IP IP IP CO CO CO Access Plant Access Plant Access Plant VoIP Peering IP Peering Point IXC IXC Access Plant RF Plant CLEC VoIP Mobile TDM TDM Peering Point Class 5 Enterprise IMTC Fall Forum – November 2002 – New York, NY, USA

  8. ENUM SS7 NextGen POP Policies Next Gen POP Session Controller DNS SS7 SIP SS7 TDM PSTN SIP Application Server Media GW TDM Origination/Termination Carrier Backbone SIP VoIP Peering SIP Router IP VoIP Signaling Media Border Element Router SIP H.323 IMTC Fall Forum – November 2002 – New York, NY, USA

  9. Benefits of VoIP Peering • Immediate Cost Savings • Delivers CAPEX savings up to 60% of VoIP gateway solutions. • Maximum Service Velocity and Efficiency • Simplifies peering and reduces turn-up time and cost • Manages partner connections and enforces agreed upon business terms • Greater Service Reach and Quality • Provides seamless and secure connectivity between emerging SIP networks and established H.323 networks. • Reduces call latency and improves call quality by limiting the conversion between packet and TDM to the network edge. IMTC Fall Forum – November 2002 – New York, NY, USA

  10. Service Velocity and Quality VoIP Peering VoIP Network VoIP Network PSTN PSTN DS3 IP Carrier B Carrier A Simplified peering increases service velocity and decreases bandwidth costs Limiting TDM/Packet conversion to the network ingress and egress improves voice quality IMTC Fall Forum – November 2002 – New York, NY, USA

  11. Managing Partner Connections • Connection Admission Control ensures that partners adhere to agreed upon business terms • Minutes based throttling • CAC capabilities eliminate partner’s ability to burst beyond agreed upon traffic rates (e.g. minutes/month). • Call based throttling • CAC capabilities limit call rates and the number of calls on an endpoint or carrier basis. • Topology Hiding • The use of Network Address Translation (NAT) helps segregate partners IMTC Fall Forum – November 2002 – New York, NY, USA

  12. NextGen POP Session Controller Softswitch Carrier C Border Element Router PSTN (1) H.323 MG PSTN Termination Point IP Peering Point Enterprise A H.323/SIP H.323 Carrier B Softswitch Network Cisco Network Clarent Network PSTN SIP Carrier A PSTN PSTN Extending Service Reach IMTC Fall Forum – November 2002 – New York, NY, USA

  13. Security Management • Issue: For IP interconnections the RTP stream reveals the Source and destination IP addresses for inter-domain traffic. • Solution: All Inter Domain traffic passes a SC so as to present a single destination IP address to the originator. IMTC Fall Forum – November 2002 – New York, NY, USA

  14. Protocol conversion • Issue: Most big carrier networks are H.323 based, customer wants to send SIP traffic. Carrier does not want to run a dual stack network for various technical and business reasons. • Solution: Use SC at the network edge which convert from one protocol e.g SIP to H.323 in the core. All the core routing in the network still stays the same. The edges interface to the customer IMTC Fall Forum – November 2002 – New York, NY, USA

  15. Inter-operability between vendors • Issue: Lack of sustained inter-operability based on new version of vendor code. • Solution: use SC’s as inter-operability points between vendors and let the core network run different version of code. IMTC Fall Forum – November 2002 – New York, NY, USA

  16. VoIP Peering Architecture User Policy OSS • Programmable routing • Call treatment • CDRs XML Route Engine Signaling Abstraction Control SIP FCE IWF H.323 • Softswitch • Application Server • Gatekeeper • Gateway Media Routing IMTC Fall Forum – November 2002 – New York, NY, USA

  17. Back-to-Back UA INVITE Call Bridge (IWF) SIP Egress Leg SIP Ingress Leg ARQ, LRQ, Q.931 H.323 Ingress Leg H.323 Egress Leg ARQ, LRQ, Q.931 Routing and CAC Logic INVITE, REGISTER Databases Media Routing Fabric NAT/PAT Static Media Dynamic FCP H.323 SIP Unauthorized Media Authorized Media IMTC Fall Forum – November 2002 – New York, NY, USA

  18. Today’s Key Applications • International Wholesale Voice • Call routing and media routing are vital • Managed VoIP Services • SIP/H.323 IWF and Media routing are essential • Tandem Replacement • Interoperability and cost savings are key IMTC Fall Forum – November 2002 – New York, NY, USA

  19. IP International Wholesale Wholesale Carrier Country A 1 SIP 2 PSTN Carrier A 3 Partner C Gateways Partner B 4 Partner A Carrier B PSTN 5 PSTN NAT PSTN 6 Session Controller H.323 Class 4 Switch IMTC Fall Forum – November 2002 – New York, NY, USA

  20. MPLS Managed Enterprise Services Enterprise A 10.0.0.x/24 Edge Router Edge Router PSTN Session Controller PSTN Carrier Applications 802.1Q VLAN Gateways Enterprise B 10.0.0.x/24 IP v4 Ethernet Switch Carrier Enterprise C 10.0.0.x/24 H.323 SIP IMTC Fall Forum – November 2002 – New York, NY, USA

  21. ENUM TCAP etc. SS7 Tandem Replacement Policies Session Controller SS7 VoIP TDM Carrier Backbone VoIP Border Element Media GW TDM Origination/Termination IMTC Fall Forum – November 2002 – New York, NY, USA

  22. Summing Up • VoIP Peering is happening today – SIP/H.323 IWF is a key enabler. • The Session Controller is a key facility for the deployment of basic and value-added services. • Carriers are deploying VoIP solutions today (wholesale international voice, managed enterprise services) while preparing for new multimedia applications in the future. IMTC Fall Forum – November 2002 – New York, NY, USA

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