MWPRO IMPACT SCORE
OPERATIONAL IMPACT
42
0
25
50
75
100
MODERATE IMPACT • ASSESS BUSINESS IMPACT
Recommended Action:
Take a look and decide whether this affects your tenant, users or support teams.
Take a look and decide whether this affects your tenant, users or support teams.
What is MWPro Impact Score?
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Primary Audience
Teams AdminsIT ManagersService OwnersEnd Users
Why this score?
AI Confidence
HIGH
Enough detail is available to trust this assessment.
Assessment Reasoning
This is a confirmed new feature adding multi-line call history tabs in the Teams Calls app for users with multiple phone lines. It introduces a notable UI change for affected end users and awareness needs for support teams. No admin action or configuration is required, but help desks should prepare communication and update internal documentation. Urgency is moderate as rollout begins soon and requires awareness rather than technical work.
40
Admin Impact
45
User Impact
45
Urgency
35
Effort
WHAT YOU NEED TO KNOW
AT A GLANCE
Teams Phone users with multiple lines will see separate tabs in the Calls app for each line, making it easier to manage call history, voicemails, and recordings.
END USERS
Users with multi-line calling may notice new tabs in the Calls app for each phone line.
IT ADMINS
Inform support teams and affected users, and update any documentation or training about the Calls app layout.
ROLLOUT TIMELINE
Upcoming:
October–November 2026
October–November 2026
📢 Official Microsoft Message Center Announcement
Microsoft Teams: Multi-line call history tabs in the Calls app
Message ID: MC1484013
[What and why]
Microsoft Teams is introducing a redesigned call history experience for Teams Phone users who have multi-line calling enabled. Call activity, including call history, voicemails, and recordings, will be organized by phone line in dedicated tabs within the Calls app.
This change simplifies navigation for users who manage multiple phone lines.
[Rollout schedule]
- Targeted Release: Beginning in early October 2026 and expected to complete by early October 2026
- General Availability (Worldwide, GCC, GCC High, DoD): Beginning in early November 2026 and expected to complete by mid-November 2026
[Impact on your organization]
Who is affected
- Teams Phone users with multi-line calling enabled and multiple phone numbers assigned
- Users without multi-line calling enabled are not affected
Platforms and services
- Microsoft Teams desktop for Windows
- Microsoft Teams desktop for Mac
- Microsoft Teams on the web
- Teams Phone
What will happen
- A dedicated tab will be created in the Calls app for each assigned phone line.
- Call history will be displayed under the phone line associated with the activity.
- Voicemails will appear under the phone line where they were received.
- Call recordings will appear under the phone line associated with the call.
- Users will be able to view and manage activity separately for each phone line.
- The feature will be enabled automatically for eligible users with multi-line calling configured.
- No changes will occur for users who do not use multi-line calling.
[Action required and recommendations]
No action is required.
We recommend that you:
- Notify your help desk and support teams about the updated Calls app experience.
- Inform affected users who manage multiple phone lines.
- Update internal documentation, training materials, and support content that references call history, voicemail, or recordings in the Teams Calls app.
[Compliance considerations]
No compliance considerations identified. Review as appropriate for your organization.
Source: Microsoft Message Center • Analysed by MWPro
