The following matrix indicates the level of responsibility deploying the Enhanced Survivability Node (ESN):

Activity Customer Partner Cisco
Ordering C R NA
Planning (number of ESN nodes, region, sites, etc.) R R NA

Customer Premise Network preparation

  • Local DNS
  • Firewall ports to be allowed.
  • Proxy server for ESN to reach the Cisco cloud
 R C I
Hardware and Virtualization for ESN R C NA
Installation of the ESN R R I
Control Hub activation of ESN R R I
Certificate Management C + I C + I R
PSTN Local Gateway R R NA
ESN configuration, Dial plan and failover UCM configuration R R NA
Emergency calls routing R R NA
Monitoring I I R
Software upgrades C + R C + R R

R: Responsible; C: Consulted; I: Informed, and NA: No Action