Request SendACK(
	Request invite,
	DialogID dialogID,
	MediaDescription answer
)

Function SendACK ( 
	invite As Request,
	dialogID As DialogID,
	answer As MediaDescription
) As Request

Request^ SendACK(
	Request^ invite, 
	DialogID^ dialogID, 
	MediaDescription^ answer
)

abstract SendACK : 
        invite : Request * 
        dialogID : DialogID * 
        answer : MediaDescription -> Request