Best opensource Asterisk based billing system

Hello my friend. I can do the task as required install and configure OpenSource asterisk based billing system

Hi, Dear client! I am a web developer with 4 years of experience in PHP, Nodejs, React.js and Django. The best quality and accurate timeline is what I guarantee you. If I am engaged in this project, I will surely make you happy . I am looking forward to hearing from you soon. Best regards. Jaime

How are you doing? I read your description in detail. I have experiences at website develop and can help you. I am very excited on your project, and I am ready to start work immediately. I am a senior software engineer and full-stack developer with 6 years of experience. I have skills: Reactjs and Anglarjs & javascript. I am very experienced, have good skills, and also have much availability to work at anytime. I wish to work for you, please open chat with me. Thank you. I want to work with you for a long time.

Hi, Dear Client, I will help you wonderfully! I am very pleasure to see your project. Because the skills of your posted task all are so match with my skill sets. So I have full experience in PHP, Linux, Software Architecture, Asterisk PBX, VoIP etc. I hope we meet soon in here and discuss more about task. Thanks! Alona.

Freeside may work for you. I can implement that. . Thank you,

Hello, I have a good experience (5+ years) in SIP Billing systems and I can do your requirements, let's discuss more.

Hi, I can mentor and help you to install asterisk on your server. Also guide you how to operation it and develop it in the future