maybe it’s not related to what you posted here, but, I wanted to share something regarding DTX in AMR_HR calls. When we have activated DTX for AMR in HR during the call setup we can hear clicks and “metallic” sounds. And this is happening when the calling party is Nokia MS. When we disable DTX it’s fine, but HO due to quality increases. We are using B10 ed7 too. And that’s happening only in WCS call server. In the areas with Legacy there’s no problem. Did you hear something similar to any operator in the world wich has ALU?