I just recently installed and IP Office R7 and the vociemail to email did not work. They had an Exchange server that we were not allowed to touch. Their IT people did work with us and the ultimate solution (after three different techs) was a setting in exchange server for "other devices" It is how you allow mail to come from phone systems, blackberry, Iphone, Etc. I beleive this setting first came out in Exchange 2003. I hope this helps.