Cisco Field Notice FN74155 reports that Cisco Emergency Responder 15SU1 with IP subnet tracking may end the subnet search early and route emergency calls with the default ERL instead of the caller's ERL and ELIN.
Checked 2026-10-01
- Vendor
- Cisco
- Product
- Cisco Emergency Responder
- Subsystem
- IP subnet tracking
- Deployment
- on-premises
- Region
- us
- Release range
- 15SU1 (15.0.1.11900-15)
- Checked
- 2026-10-01
Sources
- Field Notice: FN74155 - Cisco Emergency Responder Emergency Location Identification Number Lookup (ELIN) Fails When Making an Emergency Call - Software Upgrade Recommended — Cisco Systems · tier 2 current vendor documentation · FN74155 > Problem Description / Problem Symptom
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting 911 calls that route with the wrong location: source note e911-routing-failures-fn74155-default-erl. WarmTransfer. https://warmtransfer.net/knowledge/claims/e911-routing-failures-fn74155-default-erl
BibTeX
@misc{warmtransfer-claim-e911-routing-failures-fn74155-default-erl,
title = {Troubleshooting 911 calls that route with the wrong location: source note e911-routing-failures-fn74155-default-erl},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e911-routing-failures-fn74155-default-erl},
note = {Source note e911-routing-failures-fn74155-default-erl, checked 2026-10-01}
}