Non-CER Through Aggregation

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 Aggregation. Emergency Calling is provided, regardless of the Class of Service, as long as the phone is registered.

Non-CER through aggregation 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 SIP trunking Session Border Controller (SBC) and Cisco Unified Communications Manager

  • Media traffic is between the endpoint and SIP trunk SBC

Emergency Call (Non-CER Through Aggregation)

dialplan-emergency-non-CER-aggregation

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

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

previous

VoIP

next

Non-CER Through Local Gateway