Engine.help
From Yate Documentation
The engine.help message is generated by the Remote Manager to ask a module for specific help.
This message is always dispatched synchronously.
Mandatory parameters
- line
- everything that was entered on the Remote Manager's line after "help" or "?" with initial spaces removed.
Return value
A module that handles this message should acknowledge the message.
The textual return value is displayed back to the remote client.
