[asterisk-users] OT - IP Network Call Recording

[Tom Lynn]

Check out Oreka at sourceforge, too.(aka OrkAudio)

On 2/15/07, Kristian Kielhofner <kristian.kielhofner at gmail.com> wrote:
>
> On 2/15/07, Cory Andrews <cory at voipsupply.com> wrote:
> > Apologies in advance as this is not directly Asterisk related, however I
> > thought I might be able to leverage the experience of particiapants on
> > this listserv for some advice.
> >
> > I have a client who is utilizing Talkswith PBX appliances, which have no
> > native call monitoring/call recording capabilities.  They are looking
> > for an additional application, service or appliance that can sit on the
> > LAN, and allow an administrator to monitor or recording inbound/outbound
> > calls.  If anyone is aware of a mechanism or solution that would provide
> > this capability, please shoot me an email.
> >
> > Thanks
> >
> > Cory Andrews
>
> Cory,
>
>   From their website it appears they are using SIP.  With any luck it
> will be SIP + ulaw (without re-invites).  If so, do this:
>
> 1)  Get a decent managed switch that can setup monitor ports.
> Configure one port to monitor the port connected to the Talkswitch.
>
> 2)  Get a decent dual-homed machine.
>
> 3)  Connect one interface of the dual-homed machine to the monitor
> port.  Running Linux, do an ifconfig up [interface name] (no IP
> address).  Configure the other interface to connect to a network for
> management, copying files, etc.
>
> 4)  Start up tcpdump on the interface, writing to a file.
>
> 5)  Use something like Cain + Abel to read the RTP and dump the audio to a
> file.
>
> 6)  Convert files to desired format using sox.
>
>   The only step I left out was "Profit!".  Seriously though, this
> depends on a few key assumptions about the Talkswitch:
>
> 1)  That it is standard SIP.
>
> 2)  It uses ulaw.
>
> 3)  It doesn't do re-invites.
>
>   Not any one of these is a show stopper for this type of sollution,
> but any one of them (or all of them) could make life a bit harder for
> you...
>
>   Good luck!
>
> --
> Kristian Kielhofner
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