[App_rpt-users] Intermittent DTMF Decode?

[Jim W7RY]

Thanks Paul

I am using a URIx on my VMWare Player system. I am able to command the 
node from the CLI screen. I've had it connected to the WIN system 
reflector for several days. In fact, when you waved a hand to me the 
other day, I was talking to you from the node on the VMWare Player 
system. The audio seems fine. But now that you say something, I do 
notice a small artifact of very slightly chopped audio when the node 
transmits. I attributed it to my internet connection. I'll have to do 
more listening. I'm using a Motorola P110 UHF portable for a node radio. 
I removed the radio from its case and put it into a cast aluminum box 
for additional heat-sinking.

I also have a Dell D600 laptop that only runs Asterisk. I'll move the 
URIx and P110 to that node and reset the levels. Then Ill see if I can 
hear the audio choppiness.

I don't have to use any special codes to see the decoded digits. In the 
CLI screen, it shows the digits as they are received and decoded. It 
shows digit and the length of the digit.

Thanks for the input.
73
Jim W7RY



On 10/7/2013 6:59 PM, Paul J. Agamata wrote:
> Unfortunately, VMWare with Asterisk 1.4.xx will yield a lot of
> inconsistencies.  I've managed to work through all of this many times in
> the test bench and also in production.  One of the more prominent issues
> is the quality of the audio stream under certain conditions especially
> when the instance has a lot of interrupts going on.  This is not so much
> of an issue with new versions of AsteriskŠ I think there's been
> significant advancements and the ability to legitimately run asterisk
> under a virtual instance.  VMWare is not the preferred mode of running
> asterisk either because of how VMWare works as opposed to other
> virtualized software such as Zen or OpenVZ.  OpenVZ seems to be the flavor
> for Asterisk that the Telecom VoIP world is preferring.
>
> I'm not certain whether or not a URI will be accessible via a virtualized
> instance like VMWare as it will require modification of drivers to be able
> to access the device over the virtualized software layer (I'm not sure
> cause I've never done it).  I fairly certain, that if it is possible and
> the virtualized instance even sees the URI/USB connection that the audio
> will suffer because of how the VMWare layer timing/or lack of timing is.
> You may have better luck with an RTCM which uses ethernet connectivity
> which a virtualized instance will handle better vs. a hardware interrupt
> based product like a URI.
>
> With that said, I'm finding the audio stream fairly good with the
> implementation of ESXi 5.1 with the ACID build.  It's core dumping quite a
> bit for other reason, some of which is eluding me at the moment but the
> audio characteristics are very stable with the current version of ACID.
>
> NowŠ That's my 2 cents on virtualization of ACID.
>
> With the issue of your DTMF, you may want to use the parrot mode in
> Asterisk to listen to how the audio is coming through.  I'm sure with your
> experience you'll immediately identify the issue when it plays back to
> you.  My sense and the experience that I've had with VMware was that the
> fuzzy and distorted aspect of the audio running in VMWare contributed to
> the inability to decode the audio properly.
>
> Regards,
> Paul
>
> _______________________________
> Paul J. Agamata
> WH6FM
> Sysman at Xceptions.COM
> Hilo, Hawaii
>
>
>
>
>
>
> On 10/7/13 3:12 PM, "Jim W7RY" <w7ry at centurytel.net> wrote:
>
> No need to do that. I see the decoded data on the screen while in
> Asterisk. Tells me the digit and the duration of the digit.
>
> Sometimes it decodes and sometimes it doesn't.
>
> This is the only thing I have found wrong with running Asterisk on a
> VMWare Player in Windows7.  I can control the node perfectly with
> keyboard commands.
> If it really is VMWare Player causing the issue.
>
> 73
> Jim W7RY
>
>
> On 10/7/2013 4:35 PM, Tim Sawyer wrote:
>> You can see your TTs by starting up the CLI> with 'asterisk -rvvv'.
>>
>> The last time I told someone they shouldn't run app_rpt in a VM I was
>> criticized, but... it probably is VMware.
>> --
>> Tim
>> :wq
>>
>> On Oct 7, 2013, at 2:03 PM, Jim W7RY <w7ry at centurytel.net> wrote:
>>
>>> Has anyone had problems with the DTMF decoder in Asterisk? The decoder
>>> in the node running in VMWare Player is very intermittent.
>>>
>>> I'm thinking its the VMWare that is messing it up. But I cant be sure.
>>> Before I try to use other receivers or put tones directly into the URIx
>>> I wanted to check.
>>>
>>> I've not had problems before with other nodes.
>>>
>>> Thanks
>>> 72
>>> Jim WRY
>>> _______________________________________________
>>> App_rpt-users mailing list
>>> App_rpt-users at ohnosec.org
>>> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>> T
>>
>>
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