Hi Dear friends.
I am searching for a beginning point of creating an application that will allow a php-mysql program to interact with a VOIP caller. I would like to register orders from phone and VOIP or get service to callers and customers. So my customer chooses any option to get relevant information about any product whatever they want to know.
For example I create database for saving various product details. If customer calls to my office then they hear welcome message and categories of product then press 1 button and system will define relevant product detail.
Where do I begin with this project? Specifically, getting the VoIP services which interact with the php and mysql.