I want to integrate 3CX to our MS

[yoursmartgecko]

I have 3CX and 365 and want them to integrate with each other. Is there any additional cost and do you have set up instruction link?

 

[Artem Khvostenko]

Hi
https://www.3cx.com/docs/microsoft-teams-integration-faqs/
At least you need purchase true ssl certificate https://www.ssl.com/ for SBC and MS licences for users:
One of the lower ones:
Office 365 requires a Phone System or Office 365 Enterprise E5 license
Office 365 Enterprise E5 ($35)
Office 365 Enterprise E3 ($20) + Phone System ($8)
*costs are approximately