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TroubleShoot invalid DID Showing Skype on-premise

Retired product. Microsoft retired Skype for Business Online on July 31, 2021, and support for Skype for Business Server 2015 and 2019 ended on October 14, 2025. Microsoft Teams replaces them. This article is kept for reference. Skype for Business Online retirement
Written June 2020. Microsoft changes these admin screens often, so the screenshots below may not match what you see today. The sequence of steps is usually still correct — if something looks wrong, tell us and we'll update it.

Time to Execute: 30m

1.       Check for the DID first in the Skype control panel if given correct as desired.

2.       Check for the route and see if any suppression is there.

3.       If the suppression is used, then look for the voice policy this route is assigned.

4.       Check whether the same voice policy is assigned to the user, if not assign it and the suppression DID (desired one) will be shown onwards.

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