Skype for Business, Polycom Trio and Sonus SBC 1K/2K and SWe Lite: how to avoid Call on Hold issue

Hi All, recently I've managed a very strange issue with Polycom Trio 8800 when placing a call on hold, following you will find the scenario and, the more important thing, the solution! Scenario 1 Skype for Business on-premise with Enterprise Voice enabled. Sonus SBC 1000 as Voice Gateway (fw. 6.1.1 build 459) Polycom Trio 8800 with... Continue Reading →


Sonus SWe Lite Step-by-Step Setup

Hi all, Sonus released the new SWe Lite Virtual Appliance, that share code, interface and behaviour with phisical and well known devices SBC 1000 and SBC 2000. Official Setupo Page is here (, but something seems different between documentation and this firs GA release. If you use Hyper-V you have to read two great articles:... Continue Reading →

How to solve “MAPI Unavailable Your Outlook profile is not configured correctly. Contact your support team with this information.” error in Skype for Business 2016 client

Hi everyone, if you have the "MAPI Unavailable Your Outlook profile is not configured correctly. Contact your support team with this information." error in Skype for Business 2016 client, this is the simple procedure to solve it. Few weeks ago you could find the simple workaround in Microsoft KB 3147130 (, but if you search the... Continue Reading →

Sonus SBC1000/2000 Active Directory Call Routing: how to query both Configuration and Default Naming Context

Hi, today I want to show you how to configure your Sonus SBC1000/2000 to make LDAP Query in Configuration and Default Naming Context. Scenario The schema below is a very common configuration, where a Sonus SBC1000/2000 work as a man-in-the-middle between your PSTN Carrier and a legacy PBX during a migration to Lync Enterprise Voice. It's... Continue Reading →

AudioCodes ACD/IVR application for Lync/Skype for Business

Hi all, last week I had time to install and test the AudioCodes ACD/IVR application for Lync and Skype for Business ( This application is member of the AudioCodes Application Suite for Microsoft UC (, which also includes  SmartTAP Call Recording, SIP Phone Support (SPS), Campus Mobility and Fax Server. IVR and Fax Server are merged into... Continue Reading →

iPhone default notification sound disable audio on Plantronics Voyager PRO

Hi all, some days ago I receive a (very) strange issue notification from a colleague: he reports that, during a voice conversation with Skype for Business 2015 using a Plantronics Voyager PRO, if he receive a SMS or WhatsApp message on his iPhone 5, the other endpoint will not hear anything and then drop the call.... Continue Reading →

UPDATED: Analog Device Voice Policy (do not) supported on Skype for Business

Hi all, after the migration from Lync 2013 to Skype for Business 2015 of our production deployment, I receive a call from internal IT for an issue on our analog devices: if they try to call a internal number, no problem. If they try to make an external call, this is dropped suddenly. Our deployment... Continue Reading →

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