We want to develop an IVR (Interactive Voice Response System) .
The system should have the following functionalities .
1) Should be able to attend multiple calls at a single time ,
2) The system should play the spardecific audio according to
the number that is dialled by the user .
Please specify what experience you have got in building
IVR system ,
Please specify the hardware , programming language and the
open source softwares you are going to use for the project in
the PMB .