Forwarding On-premises UM AutoAttendant call to Teams hosted Extension/user

[Mohammed Hamada]

Hi, 

I am in the process of migrating Skype for Business 2015 to Teams and have couple of migrated users to Teams with their DID/Extension. On-Premises Exchange with UM/Auto Attendant is setup but I have an issue.

When dialing an Auto Attendant number and dialing an extension for a user that's been migrated to Teams the call goes no where. 

What kind of rule do I need to setup in order to get calls forwarded to users's extension on Teams ? 

Thank you

[#2]

@Mohammed Hamada I would move the AA to Teams, Exchange UM AA are very dated, and I would strongly suspect simply can't do what you are asking for. It's no longer supported or exists in Exchange 2019, so whichever version you have will be beyond mainstream support.

[#3]

Hi Steven,
If I created AA in Teams and still have users in Skype for business on-premises and Teams. would PSTN calls be routed to both users or do I have to migrate all users to Teams in order for that to wokr?

Problem is I have both Response groups as well in addition to AA.
Thank you

[#4]

@Mohammed Hamada yes, see Plan a Cloud auto attendant - Skype for Business Hybrid | Microsoft Docs

[#5]

Hi @Mohammed Hamada 

Extension dialing from AA will search for attribute Mobile phone or Office phone on your AD. Assuming this is your AA config:

Put something like ext=XXXX at Office phone or Mobile phone attribute for example:

Wait for up to 12 hrs for the changes to take effect. I hope this will answer what you're looking for.