While SIP Trunking does enable an enterprise to design a more efficient telecommunications network, before migrating, enterprises should consider how the changing architecture will impact availability and reliability. Drawing on insights gained over the past three years certifying SIP Trunking with Avaya Communications Manager and Aura, the Avaya DevConnect Lab Team & Verizon will share insights into how enterprises can design high availability architectures with SIP Trunking. Comparisons to PSTN architecture, disaster recovery features, examples from customer deployments and cost-justification will also be covered.