1. SIP Trunking A VASP Perspective Thomas Roel Convergence Sales Engineer 651.796.7043 troel@nacr.com

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4. Case #1 Large e-commerce/TV broadcast company o ACD SIP Integration from acquire competitor to existing Call Processing engine o Remote Agents from competitor brought into new system with SIP endpoints o Presence in the Enterprise o Migration to SIP Trunking o One year cost-savings > $1.7M.

5. Case #2 On-line Dating Company o Desire to create virtual Contact Center o SIP Trunking implemented o Inbound calls via SIP delivered to outsourced agents via IP o Derived Benefits Centralized Reports Centralized Recording Centralized Call-delivery control > $1M in first year

6. Case #3 National Bus transportation company o Hundreds of locations o Was spending thousands of $$ each month on local and toll-free over traditional trunking methods o IP Flex enabled porting of local and 800 #s into primary Data Center o Single trial location derived $72K savings in very short period of time

7. We strongly recommend use of SBC for ALL SIP Trunk Deployments Session Border Controller – Firewall for SIP / VoIP Secure the borders of a VoIP network Protect VoIP, video and UC sessions Authentication, Encryption, NAT traversal, DoS protection Fix protocol interworking issues Assure & measure session quality Monitoring, reporting, & troubleshooting (demarc) Traditional firewalls cannot: Prevent SIP-specific overload conditions and malicious attacks Open / close RTP media ports in sync with SIP signaling Track session state and provide uninterrupted service Perform interworking or security on encrypted sessions Scale to handle many 1000s of real-time sessions Provide carrier class availability

8. SIP Trunking – the provider perspective WAN Service Call App Server PSTN SIP Provider Session Border Controller (SBC) Is this a certified configuration? What services do you want? Multiple flavors of SIP trunking

9. 1.Do I send a 1? 2.Are you sending me 10 or 11 digits? 3.Is there a DID range? 4.Send a + for International? 5.# of digits for International? 6.Are trunks both inbound and outbound? 7.Route pattern choices if this fails? 8.Fax support?

10. [ ] NACR Checklist

11. Deployment What Determines a Successful SIP Deployment? Customer (Training) Convergence (Voice&Data Teams) Architecture Design & Services

12. Evaluation of performance and stability of an existing data network before deploying a SIP solution Call Servers translation and equipment analysis SIP Integration Assurance IP Optimization Review Evaluation of performance and stability of an existing data network before deploying a VoIP solution Call Server translation and equipment analysis Covers the system components for SIP Trunking, such as SIP Proxy and Registrar Services, Session Border Controllers, and basic troubleshooting tools. Introduction to SIP Provides voice professionals with a strong foundation in data networking protocols such as H.323, H248, as well as an introductory overview of SIP. Introduction to VoIP Enterprise Preparedness

13. Thank you Thomas Roel Convergence Sales Engineer 651.796.7043 troel@nacr.com