Hello, To troubleshoot Voice Quality issues and automate testing, I'm planning to use Asterisk as a softphone alternative (with better scripting capabilities) on a Linux 4.10-enabled Ubuntu laptop. This laptop has two audio jacks with a compatible headset. I'm testing console channel with lines such as: same = n,Dial(CONSOLE/default) When I'm answering an incoming call with "console answer" CLI command, I can read a WARNING message "console_indicate: Don't know how to display condition 26 on Console/default". At the same time, I can't hear anything on my headset. I must say I'm a total beginner in Linux audio topic. My questions are: 1. Which is the best way to go between OSS and ALSA ? 2. How can I list audio devices from the command line ? With aplay and arecord ? If positive, how does aplay/arecord output relate to input_device/output_device or device from alsa.conf or oss.conf ? 3. Shall I care for " Don't know how to display condition 26" warnings ? Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20171109/e8053a28/attachment.html>