Hi,
I can help you to install Newfies Dialer or some other solution to your server.
I have a great experience with such technologies like Asterisk, Node JS, VoiP (more then 10 years).
So I can develop and support voice services.
Recently my team has integrated VOIP applications based on Asterisk to several Ukrainian and Russian hosting services providers.
If you have any questions, feel free to ask them.
I'll be waiting for your answer