I am working on a pjsip project which is targeted to handle some high volumes of calls. I have found some good information on performance tuning and it looks good so far. What I have found is that I seem to run into a hard stop at 512 calls. The performance at this level is very good, but I need to push to higher loads of calls. If anyone can provide some insight or guidance in breaking this barrier I would appreciate it very much. Jonathan Augenstine Principal run8.io jonathan@run8.io (C) 626.379.4404