YMCS is a Yealink Service and Server that helps companies manage and troubleshoot their SIP Endpoints. YMCS offers a variety of functionalities that help organizations to manage, troubleshoot and organize all customer endpoints in a single pane of glass.To sign up for YMCS:Please open a ticket with Support including the details below:Your NameCompany NameContact Phone NumberPrimary Contact EmailOnce your account creation is confirmed by our SkySwitch Support Team, go to https://ymcs.yealink.com/ and sign in using the credentials provided.Once you are signed in, you will have access to your Management Menu on the far-left side of the screen, including the following options:Device ManagementFirmware Management (Upload any firmware for any model)Software Management (USB Connect for Windows and Mac) Resource ManagementAccount ManagementDevice Configuration (Per Device, Site, Group, and Global Parameters)Site ManagementTask Management (For scheduling tasks)Alarm ManagementDevice Diagnostic (Helpful for troubleshooting, such as taking a Packet Capture from a phone)