Microsoft states the DSCP value must be present at both ends of a call for QoS to be effective, and recommends capturing Teams traffic at the network egress point, for example using switch or router port mirroring, to confirm it is not changed or stripped.
Checked 2026-10-02
For QoS to be effective, the DSCP value set needs to be present at both ends of a call.
- Vendor
- Microsoft
- Product
- Microsoft Teams
- Subsystem
- QoS validation
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Implement Quality of Service in Microsoft Teams — Microsoft · tier 2 current vendor documentation · Step 5. Validate your QoS implementation
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting voice QoS markings that are stripped or ignored: source note voice-qos-troubleshooting-teams-validate-both-ends. WarmTransfer. https://warmtransfer.net/knowledge/claims/voice-qos-troubleshooting-teams-validate-both-ends
BibTeX
@misc{warmtransfer-claim-voice-qos-troubleshooting-teams-validate-both-ends,
title = {Troubleshooting voice QoS markings that are stripped or ignored: source note voice-qos-troubleshooting-teams-validate-both-ends},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/voice-qos-troubleshooting-teams-validate-both-ends},
note = {Source note voice-qos-troubleshooting-teams-validate-both-ends, checked 2026-10-02}
}