I need sample of callback script for Asterisk using PHP. It should include:
1) AMI or call file function to make callback
2) Calls will be made only using SIP trunks without registration.
Call flow:
1) A calls Asterisk, enters destination using DTMF (this is already done using IVR/AGI php script)
2) Asterisk drops call and calls A back (usig AMI or call file)
3) When A answers Asterisk calls B
Quite regular case.