Hi folks We've a few problems with a rebuild of one of our asterisk boxes, same kernel and configs as previously but unfortunately strange iax issues. If we load chan_iax2 then the system hits 100% CPU, if we do not load this module then all is well. I have tried removing the iax.conf and loading the chan_iax2 within the console and I got an error that included: iax2 show cache' already registered (or something close enough) This implies that another module is stepping on chan_iax2's toes. I've checked the loaded modules and none of them mention iax ... Has anyone else come across this issue or can shed some light on the module crossover. For reference the issue happens with both kernels I have tried 2.6.20.4 and 2.6.21.3 and both asterisk 1.4.2 and 1.4.4. Any help appreciated. Regards Simon Alman