WML page refresh

[Richard Frith-Macdonald]

For PFI I'm trying to work around a limitation in the three gateway,  
it has a 10 second connection timeout ... so if billing takes longer  
than 10 seconds the handset won't get any response back.

I'm adding a holding page ... sent after 5 seconds to say 'please  
wait', and using cache control headers to stop[ it being cached, and  
the <meta http-equiv="refresh" ...> tag to get the handset to re-fetch  
the page.

Do you know if this meta tag works reliably for handsets which use wml  
(I expect that anything which uses xhtml will handle it)?
If not, have you any experience with using ontimer= to refresh pages?   
Can you use 'ontimer=""' to refresh the current page, or do you need  
to put a URL in (eg. 'ontimer="/?Service=X&Transaction=Y&..." where  
the page has a query string).