Hi! >> How to generate jitter from PJSIP sender side? I would like to add >> random jitter (from 0 to 10ms) from sender perspective. >> is it any possibility to do that without hacking code? > > http://www.linuxfoundation.org/collaborate/workgroups/networking/netem > https://reviewboard.asterisk.org/r/144/ You could also try wanem: http://packetlife.net/blog/2011/jan/12/emulating-wans-wanem/ http://wanem.sourceforge.net/ It is available as an bootable iso-file and as an vmware appliance. Best Regards J?rg