Transcript Slide 1
What is SIP Trunking? Thomas Roel Convergence Sales Engineer 651.796.7043 [email protected] SIP in the Enterprise Leading topic of Conversation: TRUNKING Collaboration is a significant conversation piece o Presence is a new requirement o BYOD o Application Distribution and Sequencing o CEBP – event-triggered communications ISDN & Analog Trunking WAN Service SIP Provider PSTN Call Server TDM trunk TDM endpoints The current “gold standard” … but fading IP endpoints SIP Trunking Justifications Service Provider motivations to move to SIP trunking Dwindling, and the expectation of dwindling, TDM revenues Offer new services and applications to maintain profits Incumbents need to keep smaller competitors (without TDM capabilities) out of their accounts Provide one access method for all voice and data services Enterprise benefits Reduction on enterprise hardware Reduction in footprint, power consumption and maintenance charges Flexibility in provisioning / design / resource utilization Architecturally ready for future applications (federation etc) Potential cost savings Enhanced survivability Why SIP Trunking is good. dynamic lower cost smaller foot-print viable technology SIP Trunking Example WAN Service PSTN SIP Provider Call Server Session Border Controller (SBC) TDM endpoints SIP Services IP endpoints FOCUS on SIP Trunking Using SIP trunks to connect to the service provider network could be a way to save money and extend IP, but as with any new carrier service, SIP trunks come with their own set of challenges. If you want to truly capture the savings and keep real-time applications performing as users expect, there are lots of technical challenges to deal with. … SIP trunks come with their own set of challenges … http://www.nojitter.com/hotzone/sip_trunking.jhtml Challenges Vendor/Carrier Experience o Different geographies and different vendors equate to different levels of local expertise TRAINING – Customers are less and less willing ‘take ownership’ due to unfamiliarity with the technology – DataCentric Providers SBC push-back or vendor requirement SIP Trunking “considerations” Network Normalization Firewall & NAT traversal Security & QoS SIP Normalization TCP & TLS Clear-Text & VoIP NAT breaks SIP “Open Standards” Thank you Thomas Roel Convergence Sales Engineer 651.796.7043 [email protected]