Delivering high-quality SIP applications and services Jim Hourihan VP Marketing & Product Management

What are we talking about? SIP application & service examples ─ Voice ─ Interactive video – person-person ─ “Pay per view” movies and video (streaming) ─ Interactive gaming “High quality” ─ SLA attributes – high QoS (quality of speech), available, reliable ─ Secure ─ Money making ─ Reachability

Reachability – Metcalfe’s law and network value The usefulness, or utility, of a network equals the square of the number of users PSTN Internet Data reach Voice reach $64Z ? LAN High Low High IM 2002 EM 1985 Corp. net SP net

Transit Mobile Residential End-to-end IP networks Mobile Business Residential Business

The IP network border challenges Transit Mobile Residential Mobile Business Residential Business SLA assurance Settlement SLA assurance Security SLA assurance

DiffServe-4 SLA assurance across IP networks Admission control problems - voice, video, data & stuff ─ Skinny, unmanaged access pipes everywhere ─ Fat, unmanaged transit pipes QoS Tower of Babel mediation QoS-based reporting, problem isolation & routing Protocol interworking - SIP-H.323, H.323 versions & configurations MPLS ToS NONE Frame T1 DSL DiffServe-2 VLAN-2 VLAN-3 NONE

Internet Security between IP networks Access control – what calls should be allowed in? Topology hiding ─ DoS attacks - SIP proxies, gateways & app servers; IP PBX ─ Transit networks disintermediation Bandwidth and QoS theft protection PSTN Business Transit Residential

Settlement between IP networks Babbling business models for IP communications Two historical settlement models ─ PSTN – per-minute, destination-based termination fees ─ Internet – free peering for equivalent traffic volume exchanges, small access ISPs pay fees $/minute* $/access pipe size per month* Free on-net calls* $/ minutes bundle per month* $/home per month* $/employee per month* $/MB * Read fine print $/minute

Session border controllers deliver high-quality apps & services New product category enables premium interactive communications across IP network borders Session – real-time, interactive communications using SIP, MGCP, H.323, Megaco/H.248 Border – IP-IP network borders ─ Service provider-customer/subscriber ─ Service provider-service provider Control ─ Security & address preservation ─ SLA assurance ─ Revenue & profit assurance ─ Legal intercept

Session border controller applications Security SLA assurance Revenue & profit assurance Law enforcement BusinessResidential Mobile PSTN IP Transit IP PSTN O & T Internet

Security ─ Access control & network topology hiding ─ Call rate limiting to protect softswitch ─ Hosted NAT traversal SLA assurance ─ Session admission control - access & aggregated link bandwidth ─ QoS marking – 802.1p, VLAN, ToS, DiffServe, MPLS ─ QoS reporting Revenue & profit assurance ─ H.323-SIP interworking ─ Bandwidth & QoS theft protection ─ Accounting & session timers Legal intercept Hosted IP voice services – T1/frame/DSL PSTN Internet IP O&T or Transit PSTN Termination E1a E2b E1b E2b E3 T1FT1 FT3 SIP SIP or H.323

SIP-H.323 interworking for reachability Call routing based upon real-time quality Call admission control - available transit link bandwidth Security - protect softswitch and gateways ─ Access control & network topology hiding B2B SIP UA – H.323GK/GW Reporting ─ Accounting & session timers ─ Observed QoS VoIP SIP-H.323 trunking network peering Cisco H.323 SIP B PSTN Clarent H.323 A

Voice ASP services Security ─ Access control - session-based pinhole firewall ─ Data center resource hiding SLA assurance ─ App/media server load balancing ─ Session admission control - access link bandwidth ─ QoS marking Internal data center p & q External IP net - ToS, DiffServe, MPLS ─ QoS reporting – internal & external data center Revenue & profit protection ─ Accounting ─ Session timers Legal intercept Data Center SIPRTP IP PSTN

Net-Net Extending network reach is critical to increasing value Extending reach introduces new border control challenges ─ SLA assurance ─ Security ─ Settlement Session border controllers give service providers the CONTROL to deliver high quality and make money

Delivering peak performance for premium interactive communications across IP network borders Acme Packet Net-Net ™ session border controllers