Source note · Network-based location for E911 across platforms
Cisco Emergency Responder tracks phones by switch port using SNMP and CDP, and for a non-Cisco switch or one with CDP disabled the admin enables CAM-based phone tracking on the LAN switch entry.
Checked 2026-10-14
If it is a non-Cisco switch, or CDP is disabled, check the Enable CAM based Phone Tracking checkbox.
- Vendor
- Cisco
- Product
- Cisco Emergency Responder
- Subsystem
- phone tracking
- 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 · Identify LAN Switches
Cite this note
APA
WarmTransfer. (2026, October 14). Network-based location for E911 across platforms: source note e911-network-location-discovery-cer-cam-tracking. WarmTransfer. https://warmtransfer.net/knowledge/claims/e911-network-location-discovery-cer-cam-tracking
BibTeX
@misc{warmtransfer-claim-e911-network-location-discovery-cer-cam-tracking,
title = {Network-based location for E911 across platforms: source note e911-network-location-discovery-cer-cam-tracking},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e911-network-location-discovery-cer-cam-tracking},
note = {Source note e911-network-location-discovery-cer-cam-tracking, checked 2026-10-14}
}