Good afternoon, We have a Polycom Trio 8800 and set it to multi-line. Line 2, SIP is running, but line 1 (SFB o365) gives error: failed to fectch the user certificate. What could it be?
Solved! Go to Solution.
I think this FAQ will help you. For the next time, give the community more info about you enviroment (softwareversion, logs, backup config, etc.), please.
Jan 17, 2017 Question:How can I troubleshoot simple Skype for Business, LYNC or Office365 issues?
Resolution: Have a look => here <=