I'm not sure how I'm going to validate my suspicions, but I'm wondering if there is a compatiblity issue between my MXP endpoints running F9.3.1 and my 8420 Media blades, running 4.4 (3.49). I have had users telling me that the images they are seeing on bridged calls using my 8420 media blade from MXP endpoints were very blurry or fuzzy looking. Call stats show that they are connected at H.264 so I thought it was just their perception... Typically the users complaining were sitting in front of an SX20, so I thought they were expecting the MXP's SD camera to work as good as theirs.
Until yesterday when I was in a multipoint call, and i saw how bad the MXPs were. It was a 7 site meeting, 5 of which were MXP. 4 out of the 5 looked terrible. During the call, I web browsed to each endpoint and disabled H.264. The video image improved 1000% immediately after doing this, and stayed good even after re-enabling H.264.
I'm going to contact Cisco next week, but I was wondering if anyone has already encountered a problem like this, or if you had any suggestions of how I could narrow down the root cause of my problems.