Posts

Introduction I thought I would note down some considerations when looking to migrate from an on-premise deployment of Skype for Business (SfB) to a Cloud Connector Edition (CCE). At one point there was mention that CCE and hybrid could co-exist (which would make this path much easier), but with MS Teams looking to become the primary tool in Office 365, this hasn’t come to fruition. Even if you aren’t in a hybrid configuration but you sync your on-premise AD to Azure AD, you will still have the same considerations to make. ...

What does this mean? With the release of Polycom UCS 5.7.0 for VVX phones, you are now able to hotdesk on Polycom VVX phones in Skype for Business (On-Premise or SfBO). Previously, to simulate hotdesking, it involved the “normal” user of the phone signing out of the phone fully, the “Guest” user then signing in. To then return the original state the “Guest” user would have to sign out and the “normal” user having to sign back in by re-entering their details again (if they are known). As you can imagine, not ideal (and if having to enter the user details on the keypad, quite time consuming too). With hotdesking, a user can now login to the phone as a “Guest” user. Once they have finished, the “Host” user can then re-use the phone without having to re-enter their details. Awesome! ...

Introduction Over the past few years browsers such as Chrome or Firefox have started deprecating known vulnerabilities in SSL/TLS encryption - vulnerabilities that can break the encryption. Where this post’s issue lies is that IETF have prohibited the use of RC4. The Issue Now, what happens if you need to access something via HTTPS, say an AudioCodes that uses the RC4 cipher? You will probably be presented with an error such as in Chrome: “ERR_SSL_VERSION_OR_CIPHER_MISMATCH”. This is effectively saying the browser does not support any ciphers being offered from the HTTPS sever. ...

This is a real strange one. I recently had a customer who could not transfer or conference PSTN calls using a CCE (they were able to before). This was from a mixture of Skype for Business clients, Polycom VVX handsets and Polycom CX3000 conference phones. When attempting a transfer on the Skype for Business client I got “Cannot complete the transfer”, when attempting an escalation to a conference I got “An error occurred”. When attempting to merge calls from a CX3000 I got “invalid sign-in address [email protected]”. ...

Introduction Although Microsoft’s Cloud Connector Edition (CCE) is pitched as a ‘black box’ where you just need to follow the instructions to set it up and all is well, this is not always the case. If you do have issues (as I have had on a few occasions), you will probably want to capture some logs to investigate. Whilst not exactly the same, it’s not too dissimilar to the CLS Logging on Skype for Business Server. ...