call( ) and (incorrect?) argument order

[Alasdair Allan]

Just noticed that call( ) (see p19, section 3.10) is the odd method  
out, with a prototype of

   call(string rcepient-id, map message, string msg-id )

which is the other way round to all the other methods. Should this  
instead be,

   call(string rcepient-id,  string msg-id, map message)

like the rest? If not, is there a reason why its different?

Cheers,
Al.