[Freeswitch-users] Static sound on outbound calls

[Michael Collins]

Hi Phil,

You are at the point where you need to catch the culprit in the act. My
favorite tool for this is a packet capture. I recommend you check out the
tools listed here:
http://wiki.freeswitch.org/wiki/Packet_Capture

pcapsipdump is one of my favorites because it picks out the voip calls and
puts them in separate files. However, in your case you may want to consider
using tcpdump with a ring buffer and capture all the traffic on the NIC.
The reason I say that is because when it comes time to do the analysis you
may see other network traffic that coincides with the static you are
hearing.

-MC

On Wed, Sep 12, 2012 at 2:16 PM, Phil Kim <phil.kim at valiant.com> wrote:

>  Hello All,****
>
> ** **
>
> I have been using FreeSWITCH over the last two years on both inbound and
> outbound dialing.****
>
> ** **
>
> I have a problem with Outbound calling.****
>
> ** **
>
> This does not occur all the time, but often enough for us to be concerned.
> ****
>
> ** **
>
> We have an IVR system that make an outbound call to our client and process
> the call flow using DTMF.****
>
> ** **
>
> Often times when user answers the call, there is nothing but static sound.
> It does not respond to any DTMF, and does not play any sound file either.
> ****
>
> ** **
>
> It just hangs there with little static sound in background. ****
>
> ** **
>
> I have consulted my SIP provider but they have no idea either.****
>
> ** **
>
> Any one has any idea what might be causing the issue?****
>
> ** **
>
> Thank you in advance.****
>
> ** **
>
> ** **
>
> Best regards,****
>
> ** **
>
> Phil H. Kim****
>
> Software Engineer****
>
> ** **
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
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