Expect (number) minutes delay due (reason
Pushback at own discretion
Acknowledge by rocking wing
Tow approved via (specific routing to be followed
Expect departure (time) start up at your own discretion
request start up, information (ATIS identification)
Acknowledge by flashing landing lights
Hold position
Stand by, denotes transmission from aircraft/tow vehicle combination.
Acknowledge by moving ailerons (or rudder)
Stand by
Start up at (time)
Start up at own discretion
[aircraft location] request pushback
Start up approved
Request tow [company name] (aircraft type) from (location) to (location)
request start up
Pushback approved