Hi there, I am senior developer and I can easily handle your project as you mention, I did work such a project but not exactly same...
We discuss more in chat about other requirements..
HI,
We are a Software Development Company.
Its an easy task for us.
We have experienced developer in PHP
Linux
Software Architecture
Asterisk PBX
VoIP .
We are operating since 2012 but new to freelancer.
Please come on chat to discuss the project in detail.
Project Milestones will be decided during chat.
Thank You
Regards:
Arpit Jain
Black Grapes Softech