WTAI make call (with parameters?)

Hello,

We use the WTAI libraries to place a call within a WAP page.

Does anyone know if its possible to place a voice call to a Voice
gateway (VXML interpreter) and pass it some parameters to the script?

What im trying to do is have a series of links which all dial the same
voice service but will retrieve different VXML documents depending on
what the extra parameters are.

Link might be something like :

wtai://wp/mc;80851?param1=true&param2=false
OR
wtai://wp/mc;80851?dtmf=14543

Code dials voice service 80851
Voice service recieves call and requests script based on parameters,
or it could use the dtmf sequence to pre-navigate a Voice service.
Lets face it, we're all sick of the annoying automated "Press 1 for
this, Press 2 for that" style menus. Im trying to build an app which
would avoid this.

Any help would be gratefully received.

Thanks in advance,
Shaun