Hi guys, I'm new to 3CX and the whole IP PBX world, so please bear with me. What I would like to do is to use 3CX mainly as an answering service for my team. I would like to set it up so that if a person calls my phone number, 3CX will pick up the call and prompt the user to enter an extension and then once the user enters the extension it will ring my mobile phone but then if it's not answered within so many rings (or seconds) it transfers the user to my voicemail. Currently what I have set up is SIP-to-Skype (with a Skype online number) and Exchange 2010 integration. I am currently using Exchange 2010 for my auto attendant and I have set up the system according to the following page: http://www.3cx.com/blog/docs/exchange-server-configuration/. I do not have any physical phones connected to the network and plan on using the 3CX system to ring our mobile phones and for voicemail. My current issue is that when I call my Skype online number, it rings once then disconnects the call. This happens when I call from my mobile number stored in Active Directory and when I call as a blocked number. Here is my current setup: Host Machine: Windows Server 2008 R2 Datacenter, AD Domain Controller, DNS Server, IIS Server, Exchange 2010, SharePoint 2010 Virtual Machine: Windows Server 2008 R2 Datacenter, IIS Server, Lync 2010 Server, 3CX Server (w/SIP-to-Skype Gateway) I should also note that the host machine does not have a sound card installed, but after some reading most people say that sound cards are not necessary. Any help would be GREATLY appreciated, as I have been racking my brain for a couple days on this issue.