This webcast discusses continuous communication before, during, and after disasters. It covers setting up reliable and cost-effective communication redundancy using Cisco Call Manager clustering and SRST for branch offices. The webcast also explains how to deploy E911 services, enable remote work during emergencies using Cisco Mobility Manager, and migrate systems gradually using Cisco technologies to integrate with existing systems. The webcast can be found on Cisco's website and is important because communication is crucial in all situations, especially disasters.