There's gotta be a way - how do you make your outgoing call go straight to voicemail, in order to leave a message and NOT have the recipient's phone ring?
When I had Verizon, I could do it by going into my own voicemail and choosing "more options." One of the options was to leave a reply message, but you could just type in the person''s phone number (couldn''t choose it from My Contacts, though) and do it that way. I don''t know if AT&T has a similar option, but I don''t know how you''d do it through the iPhone anyway, with the visual voicemail. So I''m really glad to hear about slydial! I don''t do this often, but it''s nice to have the option when necessary.