Source note · Network-based location for E911 across platforms
In Cisco Emergency Responder, ERLs are assigned to switch ports after phone tracking completes, and an ERL can be as granular as building, floor, quadrant, room or workstation.
Checked 2026-10-14
- Vendor
- Cisco
- Product
- Cisco Emergency Responder
- Subsystem
- ERL
- Deployment
- on-premises
- Region
- us
- Release range
- documented on CER 11.5 lab; page updated 2026-08-03
- Checked
- 2026-10-14
Sources
- Integrate Emergency Responder with CUCM — Cisco Systems (TAC) · tier 2 current vendor documentation · Phone Tracking via Switch Ports; ERL definition
Cite this note
APA
WarmTransfer. (2026, October 14). Network-based location for E911 across platforms: source note e911-network-location-discovery-cer-erl-switch-ports. WarmTransfer. https://warmtransfer.net/knowledge/claims/e911-network-location-discovery-cer-erl-switch-ports
BibTeX
@misc{warmtransfer-claim-e911-network-location-discovery-cer-erl-switch-ports,
title = {Network-based location for E911 across platforms: source note e911-network-location-discovery-cer-erl-switch-ports},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e911-network-location-discovery-cer-erl-switch-ports},
note = {Source note e911-network-location-discovery-cer-erl-switch-ports, checked 2026-10-14}
}