Hi,
I have read your project description and I belive I'm the best canidate for this job.
I have done all the projects in VoIP and opensips Technogloies and have a strong knowledge about it.
$8 USD in 40 days
4.9 (5 reviews)
3.8
3.8
3 freelancers are bidding on average $32 USD/hour for this job