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Saturday, September 23, 2017

Polycom VVX for hybrid Exchange

Polycom FW version 5.5.3 and Exchange hybrid.

From the logs we see that Polycom tries to perform autodiscover, but finally fails and leave EWS not deployed for online users.  I will continue debuging that, but I found a workaround:

login with sip and UPN  as but leaving domain field empty.
Then in settings-applications-exchange server URL you can hardcode:

and leave autodiscover disabled.

Update: with CURL DEBUG we can see that problem was in SSL certificates of Digicert not being trusted due to limits we left from other tests in Network - TLS - Application profile 6 (select certificates from platform or imported, but we had only one certificte selected). I also imported Digicert root, as for unknown reasons outlook is based on that while rest of MS is Baltimore.

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