SIP stands for 'Session Initiation Protocol'. We need to send xml messages via SIP Messages. The SIP wrap the xml. we need to send messages from our server to another server, and to recieve messages as well.
no need to implement voice related things, only simple data.
ptobably need to use one of the existing SIP clients sdk/open-source, and then it should be easy for you.
Example of sdk that might be good for us:
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Exprrience with SIP messages is a must.
Hello,
I have 10 years of experience with the SIP protocol. I have already done several similar projects before.
If you require any further information, feel free to contact me.
$150 USD in 2 giorni
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6 freelance hanno fatto un'offerta media di $213 USD
Hello Sir,
We are team of professional developers with having more than 7 year's experience in this field also I read your project description and We are interested in it but still we need some more information Can we discuss the project ?
Regards
Jawad Ahmed
Hello.
I hope you check my review.
I put credit in the first place.
I hope you consider some freelancers here is shopkeeper not the developer, so they couldn't do enough feedback.
I hope you give me a chance to do your work.
I will keep your time valuable.
Thanks for your attention