Well, i don't think there is a script in med (but i'm certainly not a med expert). You can load your telephone cell and glass in wed. (one model for the telephone cell and one model for the glass) and then put on the transparency flag. (or do it with script in sed when imported the models:
action glass
{
my.tranparency = on;
my.alpha = ...; // type a number for the alpha
}
(i'm not sure if this is working, because i can't test it right now, but try it)
So, as far as i know, there is no med-script, or something.
I hope this helped you!