> Source: [sk182107](https://support.checkpoint.com/results/sk/sk182107)

# sk182107 - VoIP traffic returned from the Teams is not tagged by DSCP

| Property | Value |
|----------|-------|
| Solution ID | sk182107 |
| Date Created | 2024-03-19 |
| Last Modified | 2024-03-27 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |

## Symptoms

- * In the TCPDump we see Inbound UDP traffic returning from the Windows Server is not tagged with DSCP tags.

* There are no issues with Outbound traffic.

## Cause

The issue is with the QoS rules. We cannot only match reply packets because the connections are stateful. If the rules with "Microsoft Teams Object" are in the source only, it will not be matched because the reply packets will be accepted statefully and, therefore, will not go through the policy.

## Solution

This solution requires authentication. Please log in to view the full solution.

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