Because the MLTS definition names network-based VoIP and Centrex systems, a cloud calling service used by an enterprise (Webex Calling, Teams Phone) is likely an MLTS subject to these rules, and Microsoft's own documentation discusses its RAY BAUM's Act MLTS compliance.
inferred · Checked 2026-09-24
- Vendor
- n
- Product
- MLTS (cloud calling)
- Subsystem
- applicability
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-09-24
- Status
- inferred
- Checked
- 2026-09-24
Sources
- 47 CFR § 9.3 - Definitions (Cornell LII republication) — Legal Information Institute, Cornell Law School (republishing eCFR) · tier 1 standards and regulators · 47 CFR 9.3, definition 'Multi-line telephone system or MLTS'
Cite this note
APA
WarmTransfer. (2026, September 24). Meeting Kari's Law and RAY BAUM's Act on an enterprise phone system: source note kari-ray-baum-compliance-cloud-in-scope. WarmTransfer. https://warmtransfer.net/knowledge/claims/kari-ray-baum-compliance-cloud-in-scope
BibTeX
@misc{warmtransfer-claim-kari-ray-baum-compliance-cloud-in-scope,
title = {Meeting Kari's Law and RAY BAUM's Act on an enterprise phone system: source note kari-ray-baum-compliance-cloud-in-scope},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/kari-ray-baum-compliance-cloud-in-scope},
note = {Source note kari-ray-baum-compliance-cloud-in-scope, checked 2026-09-24}
}