A day late and a dollar short…
I have been using my iPhone for VM and I had forgotten how I set the mailbox for iPhone support. So I flailed around a bit and then remembered that Tom Pacyk had the info on his blog….
And now it will be here also, so idiots like me don’t forget where to find the info.
set-ummailbox identity –callansweringcodec gsm
You can use g711 also, but it makes huge files.
Exchange 2010 does MP3 as the default, I believe, audio files for VM so this should not be an issue if you have Exchange 2010.