[Freeswitch-users] Configuring mod_portaudio for Debian built-in (JACK?) audio

Bote Man botelist at gmail.com
Sun Mar 28 20:40:38 UTC 2021

I have never tried any of the linux audio drivers, but I have never heard a good word about any of them. YMMV.


In ${conf_dir}/autoload_configs/portaudio.conf.xml I see:



    <!-- indev, outdev, ringdev:

   partial case sensitive string match on something in the name

   or the device number prefixed with # eg "#1" (or blank for default) -->


    <!-- device to use for input -->

    <param name="indev" value=""/>

    <!-- device to use for output -->

    <param name="outdev" value=""/>


The wiki has some good ideas on how to list the available devices from fs_cli in:



One suggestion to aid you in testing would be to use the “playback” dialplan app to generate test tones with tone_stream or play a .wav file.




Bote Man

Bote Communications




From: FreeSWITCH-users <freeswitch-users-bounces at lists.freeswitch.org> On Behalf Of Steven Schoch
Sent: Sunday, 28 March, 2021 00:18
To: freeswitch-users <freeswitch-users at lists.freeswitch.org>
Subject: [Freeswitch-users] Configuring mod_portaudio for Debian built-in (JACK?) audio


I have an HP Prodesk tower with Debian and FreeSWITCH installed. It has an audio jack that is plugged into a speaker. I configured the system so that the devices in /dev/snd are group "freeswitch". Now I want to transfer a call to the speaker with <action application="bridge" data="portaudio/auto_answer"/>.


However, I am getting errors when I load mod_portaudio that look like this:

2021-03-27 21:15:30.747447 [ERR] mod_portaudio.c:1617 Invalid outstream specified for endpoint 'default'


It looks like a config file issue, but I have no clue where to start because I couldn't find a good example. Any suggestions?




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