Action: Login
Username: amanager --> A username that can access the manager console (remotely) as specified in your manager.conf
Secret: sauce --> A secret password (this goes cleartext over the line, so if you go remote, watch out)

Action: Setvar
Variable: MSGTEXT
Value: "Anything you want it to say" --> Again, this is all cleartext

Action: Originate
Channel: SIP/6549 --> basically any number you want/need to call
Context: text2speech
Callerid: Evil Bot --> what you want the callerid to say 
Priority: 1

Action: Logoff