Hi guys...we had Mediatrix 1102 (siemens ap1120) running on a STMI4 card on version 5. We upgraded the Hipath to v10. Now some of the Mediatrix boxes on firmware later that v5.0.1.27 don't run on this card, but it does on newer STMIX cards. The lowest ver Mediatrix I have is 5.0.1.27 and it runs on STMI4. Others just give one ring when you call them, and cannot dial. It registers with the STMI though. Any thoughts.