I thought I saw D-Ling DPN-140S listed as a supported phone, so I ordered one. I got it and now I don't see it listed in the system management. Did I mess up and order a phone that won't work with the 3CX system?
I assume you mean a D-Link DPH-140S . It is a SIP compatible phone and basic functions should work with no issue. Some of the advance features may require some time and tweaking on your part to get them working the way you want. On the other hand you may have no problems at all. Post back once you get it up and working to confirm.