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Skype for business external implementation

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Dear all

I have just implemented skype for business 2019 on premises "enterprise edition", all on one server connected to a SQL database

Everything is working fine internally [IM, voice, video, sharing desktop]

Externally "outside the organization", only the IM is working, anything else is not working.

Can you please let me know what are the ports that needed to be published through the firewall, as well the external DNS records needed to be created externally???

Thursday, February 21, 2019 7:50 AM

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Hi Eng.Ahmed Mokhtar,

About the ports which needed to be published you could refer to the screenshot:

About the external DNS records you could refer to the screenshot:

In addition, you could refer to the following official document to find the details: Port and protocol requirements for servers.
Best Regards,
Evan Jiang

Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.
- Proposed as answer by woshixiaobai Monday, February 25, 2019 9:20 AM
Friday, February 22, 2019 3:05 AM
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Hi Eng.Ahmed Mokhtar,

Is there any update for this issue? If the reply is helpful to you, please try to mark it as an answer, it will help others who have the similar issue.
Best Regards,
Evan Jiang

Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

Tuesday, February 26, 2019 8:16 AM