[asterisk-dev] Recording sound directly from zaptel

[Steve Totaro]

I am curious what they would send on an analog line at hangup.  I can 
see data at the calls arrival making sense (CallerID) but what would 
they send at hangup and why?  I thought they usually (at least here in 
the US) send a physical voltage change such as polarity reversal to 
indicate hangup.

I guess monitor my work if there is in fact audio being sent before 
hangup.  Other than that, maybe you could setup TDMoE, capture the 
packets and see what is what.  Have you put a butt set on the line and 
listened without actually taking it off-hook for audio?

Thanks,
Steve

Alexander Lopez wrote:
> Can you use the Monitor application?
>
>   
>> -----Original Message-----
>> From: asterisk-dev-bounces at lists.digium.com [mailto:asterisk-dev-
>> bounces at lists.digium.com] On Behalf Of Maxim Vexler
>> Sent: Friday, May 26, 2006 7:04 PM
>> To: asterisk-dev at lists.digium.com
>> Subject: [asterisk-dev] Recording sound directly from zaptel
>>
>> Hello list
>>
>> I need to do a bit of frequency analyzing for the PSTN telephony
>> system in Israel. I'm using Digium's TDM400 with FXO module on port1.
>>
>> To be more particular - I'm trying to identify what signals our telco
>> company (bezeq) sends upon remote call hangup.
>>
>> For this I'm looking to somehow record the raw sound information
>> coming from the phone line into the zaptel device and upper to the
>> zapata driver, preferably while asterisk is using the device.
>>
>> The preferred recording format is WAV so that I could latter on use
>> Frequency Analyzer from relisoft.com to analyze it.
>>
>> Can I in some way, running as root of curse, get a "direct recording
>> interface" to the device (Using the kernel I assume)?
>>
>> Thank you,
>> Maxim.
>>
>> [1] http://www.relisoft.com/freeware/freq.html
>>
>> --
>> Cheers,
>> Maxim Vexler
>>
>> "Free as in Freedom" - Do u GNU ?
>>     
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