Tag Archives: ms-diagnostics: 1047

Skype for Business Federation fails only with Office 365 domains

While working with a Third-Party hosted Skype for Business environment leveraging Exchange Online for Email/Voicemail, I came across an issue where federation worked except with sip domains hosted in Office 365. Looking at the client logs from both sides of the communication in snooper, you can see constant 504 Server time-out entries: Hosted client to… Read More »