[VOIPSEC] creating virtual phones

[Robin Wood]

On 12 July 2010 01:09, Alexis Porros <alexis.porros at gmail.com> wrote:
> Hi Robin,
>
> For the scenario you require, another easy way would be to call
> extensions/numbers which are not registered/online, and as such, the VoIP
> server would handle the call and answer with the default "not
> available"-alike voice message, which lasts for some seconds. In some cases
> (depending on how you configure it), you could even leave a voicemessage.
>
> In other cases, for phones registered, you could leave the call reach the
> state unanswered, and then again, you would hear the "not available"-alike
> voice message.
>
> For more cumbersome scenarios, you could setup a rogue SIP proxy and
> configure it accordingly to what you need, though for this case, what Saúl
> suggets is more efficient.
>
> In your lab and for "playing with packets", you may want to inject or mix
> sound into the calls (at the RTP level) once they are established. You could
> use rtpinsersound or rtpmixsound, from Mark D. Collier and Mark O'Brien, or
> at least you could reuse their code to do whatever you want.
>

A couple more things to play with, thanks.

Robin

> Regards,
>
>   Alexis
>
> 2010/7/10 Saúl Ibarra Corretgé <saghul at gmail.com>
>>
>> Hi Robin,
>>
>> On Sat, Jul 10, 2010 at 10:46 AM, Robin Wood <robin at digininja.org> wrote:
>> > I'm thinking of putting Asterisk and a few virtual machines with soft
>> > phones in my lab but for the soft phones to work they will need access
>> > to a handset. I could get hold of a few real handsets and share them
>> > over USB to each machine so each one has a real handset but I was
>> > wondering, if the clients are running on linux, is there a way to set
>> > up a device that I can just cat an mp3 or wav to to simulate someone
>> > talking?
>> >
>> > The goal of the idea is to have a script which will sit on both sides
>> > of the call and either at intervals, or randomly, inject some noise
>> > into the call so I can concentrate on capturing and playing with
>> > packets and not have to worry about making real noise into real
>> > microphones.
>> >
>> > Can it be done?
>> >
>>
>> Sure, you may want to try pjsua (http://www.pjsip.org) it's a complete
>> command line based SIP softphone. You can instruct it to auto answer
>> and play a file.
>>
>> If you want complex scenarios you may want to use SIPp
>> (http://sipp.sourceforge.net/). With it you can create a XML scenario
>> describin the behavior you want and it can stream files in pcap
>> format.
>>
>>
>> Regards,
>>
>> --
>> /Saúl
>> http://saghul.net | http://sipdoc.net
>>
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>
>