[Freeswitch-users] session:recordFile(-) always creates empty wav file during outbound IVR call

Michael Collins msc at freeswitch.org
Fri Sep 2 03:09:57 MSD 2011

On Thu, Sep 1, 2011 at 10:57 AM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> Did you verify audio is going to the channel with a packet capture as I
> asked?
> Most likely you are not getting any media into the channel due to some
> issue so there is nothing to record.
FYI, if you're new to the whole packet capture thing then check this out:


Wireshark for Windows is really easy to use once you get the hang of it. The
trick will be learning how to filter out the stuff you don't want to
capture. The easiest thing to do there is use an IP address filter and plug
in the IP addr of the x-lite phone. Start the capture, make the test call,
hangup, then end the capture. Wireshark has some nice analysis tools as
well. If you have any questions on how to use it with VoIP captures then
google around or come join us in #freeswitch on irc.freenode.net.

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