Help request with Callback

Hello to all,

I am trying to setup callback in my asterisk 1.4 and I am unable to do it. I have been searching in the forum for indications but I have been unable to setup this function. Can someone help me and give me indications of how do it?

A lot of thanks

have a look here: … verse+hold
it’s a little bit tricky. i can help, if you are interested pm me.