asterisk users - May 2013 - Digium D70 visual voicemail - won't play

Hi all,

I'm trying out a Digium D70 phone with Asterisk 11.

My voicemail messages are listed in the "visual voicemail" app on the 
phone, but they do not successfully play back. The correct duration is 
shown, but the progress bar just jumps back to zero when I press the 
"Play" softbutton.

I can hear my messages fine if I "manually" dial into my voicemail 
extension.

I have "format=wav49" in voicemail.conf. Is that a problem format for 
the D70?

- Mike


D70 Current Firmware Version: 1_3_0_2_54153
Asterisk 11.3.0