Re: [Asterisk-java-users] Problems with concurrent java-threads answering incoming calls

[Gopal k. <gop...@pe...>]

Hi,

  we have done the dtmf application with asterisk-java using "getdata()" let
me check whether it will support parallel inbound calls.

On Thu, Feb 14, 2008 at 6:16 PM, Johan Sandgren <js...@sv...> wrote:

>  Hi dear users and experts J
>
>
>
> What about my problem, any clever ideas?
>
> I've got 10 phonelines with incoming calls, and DTMF-tones are coming too
> on these lines.
>
>
>
> I've written an answering AGI-javaprogram, to service() each call in
> parallel.
>
> *Example of what happens during one call:*
> Call 1 – answered by my java-class(via AGI-call),
> I'm sending some DTMF-tones to the caller (via my AsteriskChannel and
> obj.playDtmf)and I will shortly then receive a sequence of DTMF-tones as
> the answer from the caller. (using *agiChannel.waitForDigit(waitDelay))*
>
>
>
> What happens is, when many channels are in progress simultaneously sending
> DTMF, and listening for DTMF-responses, each thread will not run often
> enough to get all incoming DTMF-tones.
>
> It could take like 10 seconds (looking at my log) before one thread sent
> the DTMF-question, till it calls the get-DTMF()-command, but then it's too
> late.
>
> The delay seems to be all other threads executing in between.
>
> It's the same situation for every Thread.
>
>
>
> I wonder, why is not every thread being switched more often? Like once
> every millisecond?
>
> It's more like once every second here.
>
> Surely something must be wrong… I must be a very bad programmer… J
>
>
>
> With just one CPU, multithreaded tasks need to switch thread very quick,
> to work.
>
>
>
> What have I done wrong? Help, opinions are appreciated.
>
>
>
> Sincerely,
>
> Johan
>
>
>
> __________________________________________________________________
>
>
> Johan Sandgren
>
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>
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>
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>
>
>
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-- 
Thank you with regards,
Gopal,
PeopleTech Systems Private Limited
www.peopletech.co.in