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Old 09-15-2010, 08:22 AM   #1
tecknicalgreek
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Registered: Sep 2010
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General implementation SIP client software using C' language


Hi,
I am new to this forum and to Networking as well. I have chosen to implement:
1) SIP Client using C' language
2) Platform: Windows
3)Its going to be on command line

my problem is that I need some reference like books, material or website where I can learn how to write the code from scratch or port the code according to my requirements.

My implementation should serve the purpose like two SIP clients should communicate with each other for exchange of Audio data.

Any suggestions would be greatly appreciated.

Regards,
Tecknical Greek.
 
Old 09-15-2010, 04:51 PM   #2
Mara
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Registered: Feb 2002
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First, SIP is not that simple as it seems. If you want to be compatible with most existing implementations, you need to support a number of features. I wouldn't recommend implementing SIP if it isn't a hobby. If it's research or any other activity, get one of the SIP client/server libraries and use it. Modify when needed.

As a start you may try PJSIP: http://www.pjsip.org/

Also, remember that SIP itself doesn't carry audio/video data. For this you need another protocol, RTP.

As it comes to resources, there are many. My advice is to start with Wikipedia entry for SIP and RTP and then continue on the topics you find useful.
 
Old 09-16-2010, 03:55 AM   #3
tecknicalgreek
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Hi Mara,
thanks for your kind information. I am not doing it as hobby rather I am doing it as an individual project. In case if I need some more useful information i will try to post it here. Hope I think I am going to ask many questions in coming weeks, months or so :-)
Regards,
Tecknical Greek
 
Old 09-16-2010, 05:04 AM   #4
tecknicalgreek
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Registered: Sep 2010
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Hi,
I have got one more question, since I am trying to see which method is best suited for my small project I am trying to explore all possible methods. In this process what is the best option to go when the platform is OS independent instead I wanted to work on embedded platform with GUI and not with command line. I am quite familiar with C'and so much in to Linux environment.

Kindly get back to me if any clarifications are required.

Kind Regards,
Tecknical Greek
 
Old 09-25-2010, 02:42 PM   #5
Mara
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Registered: Feb 2002
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Most of the SIP clients those says are multi-platform. If the embedded platform is more or less standard (Linux, BSD, POSIX compatible, Windows etc etc) you should be able to make many things running. The biggest choice is which API/libary you use. Then you either write GUI, or a command line interface. However, you still need to connect the library to the GUI. If it's a good library, it should be possible for any user interface you choose.
 
  


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