Source note · DTMF methods and interoperability failures
The Teams Phone Direct Routing media stack does not support in-band DTMF.
Checked 2026-09-24
The media stack does not support in-band DTMF.
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- media processors
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Teams Phone Direct Routing: Definitions and RFC standards — Microsoft · tier 2 current vendor documentation · Section 'DTMF'
Cite this note
APA
WarmTransfer. (2026, September 24). DTMF methods and interoperability failures: source note dtmf-interop-teams-dr-no-inband. WarmTransfer. https://warmtransfer.net/knowledge/claims/dtmf-interop-teams-dr-no-inband
BibTeX
@misc{warmtransfer-claim-dtmf-interop-teams-dr-no-inband,
title = {DTMF methods and interoperability failures: source note dtmf-interop-teams-dr-no-inband},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dtmf-interop-teams-dr-no-inband},
note = {Source note dtmf-interop-teams-dr-no-inband, checked 2026-09-24}
}