Installation and Configuration of VoIP System using Asterisk and A2Billing on AWS Ubuntu Server

Job ID: 36651464

Budget: $250 – $750 USD

I am seeking an expert for the installation and operation of a VoIP system using Asterisk and A2Billing. The work will involve the following:

Full installation and configuration of Asterisk and FreePBX on an AWS Ubuntu server.
Full installation and configuration of A2Billing for managing customer accounts, billing, and prepaid services.
Configuration of GSM gateways to work with Asterisk / FreePBX.
Configuration of a mobile phone application to work with the system (such as Zoiper, Linphone, or Bria).
Ensuring that customers can easily download the app and set up their accounts.
Ensuring that the system is secure and regularly updated.
I am looking for someone with prior experience working with Asterisk and A2Billing, as well as configuring GSM gateways. You should be able to provide solutions to issues and offer technical support if required.