US rules for multi-line telephone systems require that a user can dial 911 directly from any station, without any additional digit, code, prefix or post-fix.
Checked 2026-09-24
- Vendor
- n
- Product
- Multi-line telephone systems
- Subsystem
- emergency calling regulation
- Deployment
- on-premises, multi-tenant
- Region
- us
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- 47 CFR § 9.16 - General obligations for MLTS (Cornell LII republication) — Legal Information Institute, Cornell Law School (republishing eCFR) · tier 1 standards and regulators · 47 CFR 9.16, direct 911 dialing provision
Cite this note
APA
WarmTransfer. (2026, September 24). Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-mlts-direct-911. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-mlts-direct-911
BibTeX
@misc{warmtransfer-claim-cucm-teams-hybrid-build-mlts-direct-911,
title = {Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-mlts-direct-911},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-mlts-direct-911},
note = {Source note cucm-teams-hybrid-build-mlts-direct-911, checked 2026-09-24}
}