I have a Yealink T42S phone and it's currently registered as a Share Line. If someone calls the main number, all the phones that are registered in the Share Line will ring. I believe the Yealink phone can provision multiple SIPs. Is it possible to set up a second extension or a digital line using one of the available buttons on the phone?
Just to be clear, the second extension number I have is currently set up as a softphone using RingCentral App. I want 1 button for the main shared line and the second button for a personal extension.