I have a client with a MICS w/7.1 sw, CP150, PRI and multiple 0x16's. They have random sets and ATA users that lose voice path very intermittently. Digital will still have programming, outcalling and feature use, just no communication can happen.I have had to reset the system in the past to get the port back up, disabling in programming doesn't do it. Cold reboots whenever needed isn't a solution. Has anyone seen this and what has been the fix.