Overview

You noticed that calls to a particular MS Teams number made from a mobile phone do not complete.

Solution

To start with troubleshooting, we will need fresh call samples. Reproduce the issue and open a ticket with Support, making sure to describe the issue and any symptoms you observe, and add at least two call samples in the following format:

• Calling From Number:
• Calling To Number:
• Date of call: dd/mm/yy
• Time of call: xx:xx am/pm (time zone)
• Trouble observed: Inbound or Outbound
• Description of the failing scenario

Verification

Once the root cause is fixed, try to replicate the issue to confirm that it is no longer there.