Non-CER Through Local Gateway

This call type is the standard enhanced emergency call to the Emergency Service Center (for example, US Enhanced 911 or 911). If configured, the call is routed through the Local Gateway. Emergency Calling is provided, regardless of the Class of Service, as long as the phone is registered.

Non-CER through Local Gateway includes:

  • SIP/SCCP signaling traffic for the endpoint is between the endpoint and Cisco Unified Communications Manager
  • SIP signaling traffic for SIP trunking is between the local gateway and Cisco Unified Communications Manager
  • Media traffic is between the endpoint and SIP trunk SBC

Figure 8. Emergency Call (Non-CER Through Local Gateway)

dialplan-emergency-non-CER-localGW

Usage
  • The Emergency number follows the Numbering Plan requirements
  • The Emergency number can include an access code if necessary
  • The Calling Party Number is one of:
    • DDI of the Line or Site Emergency Published Number if the line does not have a DDI
    • Site Emergency Published Number
    • For Extension Mobility where a user logs in to a Remote Site, the Site Emergency Publish Number is used
  • Emergency Calls are based on the device and not the line
  • Emergency Call is configured to be routed through the Local Gateway
Accessibility User can perform Off-Net call from any endpoint registered with Cisco Unified Communications Manager
Usage Example User can dial any PSTN number from their phone
Default Configuration
  • Available to all registered phones
  • DDI of the DN is sent if available; otherwise, Site Emergency Publish Number is sent
Configuration Choices
  • Can be configured to send only the Site Emergency Publish Number for all emergency calls
Redundancy Available to users without restrictions
Survivability Not available to users in SRST fallback mode
Class of Service Available to all Classes of Service
Endpoint Types Supported
  • Cisco IP phones
  • Cisco ATA
  • Cisco VG