I want to play a custom voice message before the agent answers. The only problem is that the b predial option does not work, while the capital B does. I have no idea why this is, unfortunately I’m still quite a beginner. Here is my dial plan in case it helps anyone:
The predial option, by its name and what it is, is invoked before a channel is dialed. You can’t play back an audio file to a channel before it has even been dialed.
You’ll need to be more specific about what exactly you are trying to achieve, to what channel, and when.