Skype for Business – QoS with 3rd Party Applications

Are you using Citrix or any other 3rd party application that handles media (e.g. Call Recording / Contact Centre) with Skype for Business?  You may find you’re not marking this traffic with the correct DSCP markings. You should configure QoS Continue reading Skype for Business – QoS with 3rd Party Applications

Skype for Business (Lync) – Easiest way to add trusted root certificate authorities to Edge

Ok here is a little tip when trying to add trusted root certificate authorities to Skype for Business 2015 and Lync 2010/2013 Edge servers. Microsoft have a list of Unified Communications Certificate Providers detailed here: https://support.microsoft.com/en-us/kb/929395 Windows now automatically downloads Trusted Root certificates Continue reading Skype for Business (Lync) – Easiest way to add trusted root certificate authorities to Edge

Lync – Office 365 Federation Presence Unknown

A customer was having problems with their Lync 2010 deployment federating with Office 365.  When searching for a Lync Online user they would see “Presence Unknown” and be unable to send Instant Messages.  They could Federate with other On-Prem Lync Continue reading Lync – Office 365 Federation Presence Unknown

Lync – Unable to sign in via Edge (Checkpoint Firewalls)

I recently ran into a problem with Checkpoint Firewalls on a Lync 2010 deployment.  The customer already had a single 2010 Front End and wished to enable external sign in over the internet as it did not work over their Continue reading Lync – Unable to sign in via Edge (Checkpoint Firewalls)

Lync – Increase Internal Certificate Validity Period

When you deploy Lync and assign internal certificates to your Lync servers (E.g. Front End, Internal Edge, SBA and Gateways) by default you will only have a 2 year certificate from the “Web Server” template. I like to create a Continue reading Lync – Increase Internal Certificate Validity Period