Hi All, best greetings, this is my first post here ? I can not use two pjsua clients with two sound cards. I use 2 pjsua clients and 2 delock usb sound adapter 7.1. /etc/modprobe.d/sound.conf Options snd-usb-audio index=1,2 Pjsystest option 10 - view devices output: Enter the menu number: 10 11:23:42.040 systest.c Running Audio Device List Audio Device List Found 4 devices 0: PA [C-Media USB Audio Device : USB Audio (hw:1,0)] (1/2) 1: PA [C-Media USB Audio Device : USB Audio (hw:2,0)] (1/2) 2: PA [/dev/dsp1] (16/16) 3: PA [/dev/dsp2] (16/16) In pjsua1.conf I have --capture-dev=0 --playback-dev=0 In pjsua2.conf I have --capture-dev=1 --playback-dev=1 But... when I run pjsua --config=pjsua1.conf there is a strange thing. Seems that device 0 disappear and device hw:2,0 become number 0. Output from view devices: Enter the menu number: 10 11:47:05.515 systest.c Running Audio Device List Audio Device List Found 2 devices 0: PA [C-Media USB Audio Device : USB Audio (hw:2,0)] (1/2) 1: PA [/dev/dsp2] (16/16) >From now capture and playback device for pjsua2.conf seems to be 0. Is there any way to lock device number so the hw:1,0 is always 0 and hw:2,0 is always 1 ? maybe there is some way to make pjsua not locking (disappearing) device from device list? What am I doing wrong? :) Tomasz