Hi, all, I'm new here, so greeting everyone. I'm trying to us pjsip in my application with requirements below: 1.multiple audio devices in ethernet. these devices has own encode/decode capability, and can be accessed by UDP. 2.one machine with an ip runs the pjsip instance. It should support several accounts and handle multiple call at the same time. Each call use one of the ethernet audio device. Is that possible? What should I supposed to do? Any pointers would be greatly appreciated. Thanks, Wei