VoIP (outbound calls, IVR, Voice Recording) application in PHP

Creating a VoIP application that can be integrated with PHP based application. VoIP application should be able to call an international number, play pre-recorded messages, get responses from the receiver (IVR), call a second numberm connect the two receivers, and record their conference. ## Deliverables There is a database with three fields- Receiver1 (any international landline or mobile number), Receiver2 (any international landline or mobile number), and the time-duration. For any record of Receiver1 there can be multiple records of Receiver2. Preparing a module in PHP with the following requirements: 1) Software should be able to call Reciever1 from the database. If Receiver1 doesn’t pick up then software should call again. If the receiver still doesn’t pick then mark absent for that record and end the program, otherwise move to next step. 2) Interactive Voice response: Software should be able to play some pre-recorded messages and get response from Receiver1. Based on a pre-defined phone keys, software should either end the program or move to the next step. 3) Software should put the Receiver1 on hold and call Receiver2. If Receiver2 doesn’t pick up then software should call again. If the receiver still doesn’t pick then mark absent for that record and call the next number in Receiver2 field from the database. When Receiver2 picks up then software should move to the next step. 4) Software should play a pre-recorded message to the Receiver2 and connect the Receiver2 with theReceiver1 who is on hold. Software should record their conversation. If the call drops before the elapse of time-duration then the software should connect both the receivers again. On the elapse of time-duration, software should drop the call to Receiver2 but not from Receiver1. 5) Step 2 continues.