Source note · Business texting and 10DLC registration
US carriers enforce STOP, START and UNSTOP on US toll-free numbers and these cannot be overridden; the carrier sends its own default reply.
Checked 2026-09-25
- Vendor
- Microsoft
- Product
- Azure Communication Services SMS
- Subsystem
- Opt-out handling
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- SMS FAQ - An Azure Communication Services article — Microsoft · tier 2 current vendor documentation · Opt-out handling > How does Azure Communication Services handle opt-outs for toll-free numbers?
Cite this note
APA
WarmTransfer. (2026, September 25). Business texting and 10DLC registration: source note business-texting-10dlc-tf-stop-carrier-enforced. WarmTransfer. https://warmtransfer.net/knowledge/claims/business-texting-10dlc-tf-stop-carrier-enforced
BibTeX
@misc{warmtransfer-claim-business-texting-10dlc-tf-stop-carrier-enforced,
title = {Business texting and 10DLC registration: source note business-texting-10dlc-tf-stop-carrier-enforced},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/business-texting-10dlc-tf-stop-carrier-enforced},
note = {Source note business-texting-10dlc-tf-stop-carrier-enforced, checked 2026-09-25}
}