I have my own billing system with freeradius which is running for our customers. and i wanted to integrate Callback system with our Billing System. So if i am going to use AstBill or any others billing system i cannot make connection to my real billing system.
For this i start to work with Asterisk and PHP to work with my old database. First as i am begner in Asterisk i wanted to ask how i can include PHP file and retrive the value from PHP variable into sip.conf or extentions.conf.
for the example in following example to send max calling time, if i want to take this time value from php variable how i can define into Dial format, is this configuration will work?