Editing FreedomVoip (section)

== Raw Notes ==

Using the [http://wiki.2600hz.com/display/docs/Whistle+Home Freeswitch Based Whistle platform] in our Network Operations Center and as part of our tower build. 
 
These are some notes for linphonec, the CLI client provided by the Debian linphone-nox package. The idea behind this information is to allow remote testing of an VOIP/SIP server with a headless computer, to determine the cause of some problems, to find if they are network/firewall related or more deeply in the  build/configuration of the server program installation. (dallas.legan)
 
When using:

 &gt;soundcard use files

Need to launch 'play ...file' soon after call begins, sseems to block, hunting for something to use for a microphone, and will not even record, therefore:

 &gt;soundcard use files
 &gt;record &lt;infile&gt;
 &gt;call sip:..........
 &gt;play &lt;outfile&gt;
 &gt;.............

Running the 'play' command ASAP after 'call'. See false bug report [http://lists.alioth.debian.org/pipermail/pkg-voip-maintainers/2009-May/013712.html here]. 

'play files' should be 16bit pcm 8000Hz as per [http://www.mail-archive.com/linphone-users@nongnu.org/msg01220.html this link].
 
Suggest making such files via:

 ffmpeg -i sound.2.play.file    -ar 8000 -ac 1 -f wav     play.out.wav

seemed to work; if no '-ac 1', sound was at about 1/2 speed.