[Freeswitch-users] Questions on Building an application for FreeSWITCH
Phone
phone.bytes at gmail.com
Thu May 27 14:51:38 PDT 2010
Thanks,
Examples and feedback are most helpful!
Bob Coleman wrote:
> Hi,
>
> Will incorporate some threading into the example I am working on for you.
>
> The outbound event socket method is very similar to the dialogic
> environment, I know how you felt though, but by starting small(like
> just even answering a call) gets you moving pretty quick. Freeswitch
> is lots of fun to work with, and the guys on here are very
> supportive!!
>
> Bob
>
> On Thu, May 27, 2010 at 3:59 AM, Phone <phone.bytes at gmail.com> wrote:
>
>> Thanks to all for the most helpful feedback. Sharing your approaches
>> and experiences are a big help. I look forward to the upcoming code
>> samples.
>>
>> I was coming from a windows/dialogic environment where I used a library
>> that allowed me to work on a little higher level. For example, I had a
>> call to "play a file" that took a parameter of whether or not to allow a
>> dtmf to interrupt. There was also a call to "ReadDtmfs" that took
>> parameters to specify the number of Dtmf's to read, how long to wait for
>> them, and what terminating character to use. I guess that you could
>> write some scripts or compiled code with these same types of functions
>> to simplify some of these routine tasks with reusable code?
>>
>> Also, the library handled the threading and scheduling with the OS. I
>> am still unclear on handling the events. I guess you have a big loop
>> reading events and then acting on them using the uuid to determine which
>> call it is and how to deal with the next step of the call? Any feedback
>> on this part of the project?
>>
>> Again, Thanks!
>>
>> Bob Coleman wrote:
>>
>>> Ah sorry, I started with the esl to get an understanding then wrote my
>>> own socket library(was actually very easy to do), when I mean docs I
>>> mean the event socket docs. I still think of it as the esl, my
>>> mistake.
>>>
>>> http://wiki.freeswitch.org/wiki/Event_Socket
>>>
>>> I started with a codeplex project, that had been abandoned, and then
>>> once I understood the structure of the event socket language, was able
>>> to rewrite it to better handle what we were doing.
>>>
>>> I also married it up to an old gotdotnet asterisk fast agi project,
>>> once again abandoned, to allow for the use of asterisk as well, but in
>>> the end freeswitch won because we could use just one platform.
>>>
>>> I am busy writing a small sample app at the moment to demonstrate a
>>> problem I am trying to solve. Can release that code once sorted. Will
>>> be in a week or so. Am intending it as a quick way of testing event
>>> sockets, and trying various commands etc. before commiting to coding
>>> something.
>>>
>>> Bob
>>>
>>> On Wed, May 26, 2010 at 2:26 PM, Jan Berger <jan.berger at video24.no> wrote:
>>>
>>>
>>>> Hi,
>>>>
>>>> Do you have some sample code you could share + what docs did you look at?
>>>>
>>>> I would like to write and test some C# using ESL for my own work.
>>>>
>>>> Jan
>>>>
>>>> -----Original Message-----
>>>> From: freeswitch-users-bounces at lists.freeswitch.org
>>>> [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Bob
>>>> Coleman
>>>> Sent: 26. mai 2010 04:07
>>>> To: freeswitch-users at lists.freeswitch.org
>>>> Subject: Re: [Freeswitch-users] Questions on Building an application for
>>>> FreeSWITCH
>>>>
>>>> We used c# as the rest of our systems are windows based. The language
>>>> doesnt matter too much, as long as you know where you are headed, what
>>>> performance you require, and what platform you are going to be using.
>>>>
>>>> Found the ESL so much easier than the dialogic c library we were using.
>>>>
>>>> The docs for the esl are easy to understand, the thing I couldnt get
>>>> my head around initially was the dialing out, with the dialogic you
>>>> are in the middle when you dial, ie already on the channel, but with
>>>> freeswitch you are kind of the third party when you dial, the channel
>>>> being created by the dialing and handing it off to be worked on. We
>>>> make the call via an inbound event socket and hand it off to an
>>>> outbound event socket application via the dialplan.
>>>>
>>>> On Wed, May 26, 2010 at 10:08 AM, Phone <phone.bytes at gmail.com> wrote:
>>>>
>>>>
>>>>> Thanks for the info. What language did you use?
>>>>>
>>>>> Bob Coleman wrote:
>>>>>
>>>>>
>>>>>> Have just recently completed a project to convert an old windows
>>>>>> dialogic application(vb6) to FreeSWITCH, would reccommend using the
>>>>>> ESL, was able to map the old dialogic calls to the ESL calls pretty
>>>>>> easily. We used a mixture of inbound and outbound sockets, as we have
>>>>>> people dialing us, not just dialing out etc.
>>>>>>
>>>>>> With the dialogic you open a port and make the call and handle the
>>>>>> dtmf, with freeswitch you create a socket connection to FreeSWITCH to
>>>>>> dial the number and then hand it off to an extension for processing
>>>>>> the dtmf(that is one approach any way)
>>>>>>
>>>>>> Bob
>>>>>>
>>>>>> On Wed, May 26, 2010 at 6:45 AM, Michael Collins <msc at freeswitch.org>
>>>>>>
>>>>>>
>>>> wrote:
>>>>
>>>>
>>>>>>> On Tue, May 25, 2010 at 11:38 AM, Jan Berger <jan.berger at video24.no>
>>>>>>>
>>>>>>>
>>>> wrote:
>>>>
>>>>
>>>>>>>> Actually - before you get "to smart" - may I suggest that you start
>>>>>>>> writing
>>>>>>>> - or improving - the getting started sections of the doc. Address the
>>>>>>>> areas
>>>>>>>> where you struggle and let others benefit from your work.
>>>>>>>>
>>>>>>>> I have been through similar issues myself - FS is one of the easier
>>>>>>>> projects
>>>>>>>> to work with once you get under the hood, but you basically need to
>>>>>>>>
>>>>>>>>
>>>> evolve
>>>>
>>>>
>>>>>>>> to the level where you read the source code.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>> And if you can wait 2+ months for "the book" then that should help as
>>>>>>>
>>>>>>>
>>>> well.
>>>>
>>>>
>>>>>>> :D
>>>>>>> -MC
>>>>>>>
>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>>
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>>>>>
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