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When calls fail to reach the correct destination in Microsoft Teams, the root cause is often related to number assignment, resource account configuration, or call routing policies. Below are the most common issues and how to resolve them quickly.
Suggested help
Calls are not routing to the correct user
The wrong Operator Connect phone number may be assigned to the user.
Solution: Verify the user has the correct phone number assigned.
- Go to Teams Admin Centre
- Select Users > Manage users
- Choose the affected user
- Under Account, check the Phone number field
- Reassign the correct number if needed
- If the number is missing or unavailable, contact your support team
Calls are routing to the wrong auto attendant or call queue
The phone number may be assigned to the wrong resource account.
Solution: Confirm the number is linked to the correct Auto Attendant or Call Queue.
- Go to Teams Admin Centre
- Select Voice > Phone numbers
- Search for the affected number
- Check the Assigned to field
- Select Edit and assign it to the correct resource account
Calls are not reaching the call queue
The Call Queue configuration may be incomplete or misconfigured.
Solution: Review agent assignments and routing settings.
- Go to Teams Admin Centre
- Select Voice > Call queues
- Choose the relevant Call Queue
- Check the Agents list
- Review:
- Presence-based routing
- Overflow settings
- Timeout settings
Calls are not routing to voicemail
Voicemail may be disabled or overridden by call forwarding rules.
Solution: Verify voicemail policies and call answering rules.
- Go to Teams Admin Centre
- Select Users > Manage users
- Choose the user
- Under Policies, check the Voicemail policy
- Under Voice, review Call answering rules
Calls are routing to the wrong device
The user may have call forwarding or simultaneous ring enabled, or they may be signed in on multiple devices.
Solution: Review forwarding settings and confirm device sign ins.
- Go to Teams Admin Centre
- Select Users > Manage users
- Choose the user
- Under Voice, review Call forwarding settings
- Ask the user to check their Teams client for multiple active sessions
Calls fail when routing to a resource account
The resource account may be missing the required licence or phone number assignment.
Solution: Ensure the correct licence and number are applied.
- Go to Microsoft 365 Admin Centre
- Select Users > Active users
- Search for the resource account
- Under Licences and apps, confirm Phone System - Virtual User is assigned
- Go to Teams Admin Centre > Voice > Phone numbers and verify the number assignment
Calls are not routing after a number port
The port may not have completed, or the number may not be assigned correctly in Teams.
Solution: Validate the port status and number assignment.
- Go to Teams Admin Centre
- Select Voice > Phone numbers
- Search for the number
- Check the Status and Assigned to fields
- If the number is unassigned or unavailable, contact your support team
Calls are routing to the wrong location or site
The user’s usage location or the emergency address assigned to the number may be incorrect.
Solution: Verify both the usage location and emergency address.
Check usage location
- Go to Microsoft 365 Admin Centre
- Select Users > Active users
- Choose the user
- Under Settings, confirm the Usage location
Check emergency address
- Go to Teams Admin Centre
- Select Voice > Phone numbers
- Search for the number
- Review the Emergency location assigned