cloud pbx telephone program written and installed

I need a cloud pbx program for telephone. it needs to have a menu and some sub menues, take numbers as imput and store them in a database. record audio files, play audio files, have text to speech that will play back based on rules. take caller id, and store all the information in a database. i am uploading a sample file with the program that i wrote in python and using twilio as the cloud pbx and using heroku as the hosting. i need you to make additions and changes to the program for me. i need you to install it on a hosting server and help me test it to make sure it works and then make changes if needed. it can be written in a different programing language and hosted on a different hosting if that would be easier or better.