Microsoft India – Unified Communications Benefits of SIP Trunking for Office Communications Server Presentation
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Microsoft India – Unified Communications Benefits of SIP Trunking for Office Communications Server Presentation

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A SIP trunk is a direct connection between organizations and an IP Telephony Service Provider (ITSP). SIP Trunk enables customers to extend VoIP calls to the PSTN beyond firewall without using an ...

A SIP trunk is a direct connection between organizations and an IP Telephony Service Provider (ITSP). SIP Trunk enables customers to extend VoIP calls to the PSTN beyond firewall without using an on-premise IP-PBX or gateway.

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  • 1. To read more case studies on Microsoft Unified Communications Server click here:
    http://www.microsoft.com/everybodysbusiness/en/in/products/unified-communications.aspx

    2. To get more information on other products and services:
    http://www.microsoft.com/everybodysbusiness/en/in

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Microsoft India – Unified Communications Benefits of SIP Trunking for Office Communications Server Presentation Microsoft India – Unified Communications Benefits of SIP Trunking for Office Communications Server Presentation Presentation Transcript

  • Benefits of SIP Trunking for Office Communications Server
  • Content • Benefits of SIP Trunking • Qualified SIP Trunking Service Providers • More Information • Appendix − Technical considerations for SIP Trunking deployment
  • Benefits of SIP Trunking What is SIP Trunking? A SIP trunk is a direct connection between organizations and an IP Telephony Service Provider (ITSP). SIP Trunk enables customers to extend VoIP calls to the PSTN beyond firewall without using an on- premise IP-PBX or gateway. SIP Trunking benefits: • Save money on calling services: SIP Trunk connections for international and long distance calling can be significantly less than with circuit switched provider. • Eliminate PSTN gateways: Eliminate gateway management and administration cost and centralize technology management to bring more flexibility in infrastructure design. • Eliminate BRI and PRI subscription fees: Replace costly BRIs, PRIs with SIP Trunking. Don’t need to buy lines in blocks of 24 or 30. Instead, buy the SIP trunk bandwidth you need at better prices • Eliminate a redundant network: Consolidate telephone and data network into a single, IP based network reducing cost of redundant OA&M. • Extend to news services from ITSPs: SIP trunks can also carry other SIP based traffics beyond voice such as multimedia conferences, user presence information. With a SIP Trunk in place, you can extend to additional services from service providers such as e911, multi media conferencing, etc. “Lionbridge, a leading content provider reduced telephony bills by 60 to 80% and eliminated U.S.$1.4 million of PBX charges a year by using SIP Trunking for Office Communications Server 2007 R2” Find details here
  • SIP Trunking Providers X implies general geographic coverage of the region Qualified Sales Contact Geographic Coverage* Service NA EMEA Asia LATAM Provider Global James.Harney@Globalcrossing.com US Western Singapore Crossing Europe Intelepeer SIP@intelepeer.com US Interoute One Tony.Rogers@interoute.com X Sprint valerie.webster@sprint.com US Thinktel sales@thinktel.ca Canada Verizon US Southeast: Gordon.littley@verizonbusiness.com US Western US Northeast: frank.a.ciccone@verizonbusiness.com Europe US Central: ray.herr@verizonbusiness.com US West: albert.lao@verizonbusiness.com EMEA: Michael.van_zetta@verizonbusiness.com Swisscom In progress to get contact information X Telenor In progress to get contact information X
  • More Information • Microsoft UC Open Interoperability Program (UCOIP) • SIP Trunking whitepaper • Customer Case studies “Leading Content Provider Reduces Telephony Connection Charges Up to 80 Percent with SIP Trunking… click here for more”
  • SIP Trunking Architecture Considerations • Deployment model dictates End-to-End (E2E) support responsibility between Microsoft, Service Provider (SP) and Customer • Upstream IP Telephony Service Providers look like a “Gateway” to on- premise Mediation Server • Preferred SIP Trunking deployment model supports SBCs at the SP core. Deployment option is provided for SP-owned premise-based gateway scenario. • Office Communications Server Edge Servers must be used to manage enterprise network edge access to Office Communicator clients and Office Communications Server federated networks
  • Option #1: Qualified Service Provider, no Gateway 1. Microsoft supports “Qualified Service Provider Interface” via UC Open Interoperability Program 2. SBC offers access to the Service Provider “core” network 3. Mediation Server and core network SBC interoperate via SIP-TCP/UDP and RTP (G.711) 4. Office Communications Server provides network edge access to Office Communicator clients and Office Communications Server federated networks Service Provider & Microsoft Supported Components DMZ SBC Service Provider Core Network VPN TCP/UDP OCS Network TCP / G.711 Service Provider MPLS Mediation OCS UC endpoints Network Server Servers OCS Edge Servers OCS Federated Network UC endpoints MICROSOFT CONFIDENTIAL
  • Option #2: Managed Router with E2E Support 1. SBC offers access to the Service Provider “core” network 2. Mediation Server and core network SBC interoperate via SIP-TCP/UDP and RTP (G.711) 3. Office Communications Server provides network edge access to Office Communicator clients and Office Communications Server federated networks 4. Managed router could transcode G.711 to another codec (G.729?) with tradeoff in bandwidth vs. scalability Service Provider & Microsoft Supported Components DMZ “SP/MSFT demark point” SBC “SP Managed Service Provider VPN Router” OCS Network Core Network TCP/UDP TCP / G.711 Service Provider MPLS Mediation OCS UC endpoints Network Server Servers OCS Edge Servers Note: It is optional to use the “SP Managed Router” for Office Communications Edge OCS Federated Server Connectivity. Network UC endpoints MICROSOFT CONFIDENTIAL
  • Option #3: Qualified Gateway, unqualified Service Provider 1. Microsoft supports “qualified gateway interface” via UCOIP 2. “Certified gateway” provides link to Service Provider “core” network 3. Mediation Server and the “certified gateway” interoperate via SIP/TCP and RTP (G.711) 4. Office Communications Server provides network edge access to Office Communicator clients and Office Communications Server federated networks SP/Customer Supported Microsoft Supported DMZ “SP/MSFT demark point” SBC Qualified Service Provider Core Network Gateway OCS Network “Any” SP TCP /G.711 and media Service Provider MPLS Mediation Mediation OCSOCS UC endpoints Network Server Server Servers Servers UC endpoints OCS Edge Servers OCS Federated List of prequalified gateways: Network UC endpoints MICROSOFT CONFIDENTIAL http://technet.microsoft.com/ucoip/