check before: 2026-03-01
Product:
Microsoft 365 admin center, Teams
Platform:
Online, World tenant
Status:
Change type:
Feature update, User impact, Admin impact
Links:
Details:
Summary:
Microsoft Teams Direct Routing will support the AMR-WB codec starting early March 2026, enhancing audio quality in non-media-bypass SIP calls. This automatic update affects organizations using Teams Direct Routing and SBCs, with no required configuration changes. SBC admins should verify AMR-WB support and update documentation accordingly.
Details:
[Introduction]
Microsoft will add support for the Adaptive Multi‑Rate Wideband (AMR‑WB) codec to improve audio quality for calls placed through Teams Direct Routing. This enhancement will introduce wideband audio capabilities when supported by your Session Border Controller (SBC) and will apply to non‑media‑bypass scenarios where the Session Initiation Protocol (SIP) interface negotiates codecs with the Teams service.
[When this will happen]
General Availability (Worldwide): Rollout will begin in early March 2026 and is expected to complete by mid‑March 2026.
Change Category:
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Scope:
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Release Phase:
Created:
2026-02-19
updated:
2026-02-19
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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summary for non-techies**
Microsoft Teams will enhance audio quality by supporting the AMR-WB codec starting March 2026, requiring no manual adjustments, but organizations must ensure their Session Border Controllers (SBCs) are compatible with the new codec.
Direct effects for Operations**
Audio Quality Improvement
The introduction of the AMR-WB codec will enhance audio quality for calls, but if not prepared, users may experience inconsistent audio quality during the transition period, especially if their SBC does not support the new codec.
- roles: SBC Administrators, End Users
- references: https://learn.microsoft.com/microsoftteams/direct-routing-whats-new#amr-wb-will-be-enabled-for-direct-routing-trunks-on-non-bypass-calls
SBC Compatibility Issues
If SBC administrators do not verify AMR-WB support prior to the rollout, there may be compatibility issues leading to call failures or degraded service for users relying on Teams Direct Routing.
- roles: SBC Administrators, IT Support Staff
- references: https://learn.microsoft.com/microsoftteams/direct-routing-whats-new#amr-wb-will-be-enabled-for-direct-routing-trunks-on-non-bypass-calls
Configutation Options**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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