Source note · QoS marking and queuing for voice
Teams calling and meetings signaling uses UDP source ports 50070-50089 marked DSCP 40 (CS5). Those ports are not currently configurable.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Microsoft Teams
- Subsystem
- QoS
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Implement Quality of Service in Microsoft Teams — Microsoft · tier 2 current vendor documentation · Step 3, table 'Recommended initial port ranges' and footnote
Cite this note
APA
WarmTransfer. (2026, September 24). QoS marking and queuing for voice: source note qos-marking-teams-signaling-cs5. WarmTransfer. https://warmtransfer.net/knowledge/claims/qos-marking-teams-signaling-cs5
BibTeX
@misc{warmtransfer-claim-qos-marking-teams-signaling-cs5,
title = {QoS marking and queuing for voice: source note qos-marking-teams-signaling-cs5},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/qos-marking-teams-signaling-cs5},
note = {Source note qos-marking-teams-signaling-cs5, checked 2026-09-24}
}