Hello, Do PJSIP libraries allow us to change the sound card and switch to another sound card during the call ? For example, my machine has 3 sound cards, and I am on a call with sound card 0 (on board), and in real time I want to move the call to another sound card which is USB. Is this possible ? -- Thank you... Amar Akshat Please excuse any spelling mistakes, as this email was sent from a "not so good" mobile device.