CCE to Teams Direct Routing

Jehad Jawad 1

We are having a CCE (Cloud PBX with on-prem PSTN - not yet migrated)
The plan is to upgrade to Teams Direct Routing using the same SBC Gateway
There is a public IP address, with DNS A Record and a Public Certificate assigned to the SBC Gateway to work with CCE (Cloud PBX with on-prem PSTN)
Is it possible to use the same “public IP address, with DNS A Record and a Public Certificate” as a Gateway for Direct Routing?

JimmyYang-MSFT 49,186 Reputation points Microsoft Vendor

2022-01-24T03:10:12.647+00:00

Hi @JehadJawad-1864

We are having a CCE (Cloud PBX with on-prem PSTN - not yet migrated)

Can we understand that you have a Phone System with on-premises PSTN Connectivity by using the Cloud Connector Edition?

And do you want to migrate it to Teams Direct Routing?

If the answer is yes, you could refer to the requirements of deploy Direct Routing in this article.
Jehad Jawad 1 Reputation point

2022-01-26T06:51:33.033+00:00

Yes, it is Phone System with on-premises PSTN Connectivity by using the Cloud Connector Edition
And we are migrating to Teams Direct Routing
Sorry, but it is not clear in the article
JimmyYang-MSFT 49,186 Reputation points Microsoft Vendor

2022-01-27T09:56:06.437+00:00

@JehadJawad-1864

For more information about migrating from Phone System with on-premises PSTN connectivity via Cloud Connector, see the following:

https://learn.microsoft.com/en-us/microsoftteams/direct-routing-migrating#migrating-from-office-365-phone-system-with-on-premises-pstn-connectivity-via-cloud-connector-edition
Jehad Jawad 1 Reputation point

2022-01-31T10:57:27.373+00:00

I already checked these links
There is no clear answer
JimmyYang-MSFT 49,186 Reputation points Microsoft Vendor

2022-02-03T09:24:21.383+00:00

Hi @JehadJawad-1864

I will check if there is detailed document talking about it. If there is any new information, we will update it here.