We recently deployed and Asterisk 1.8.15-cert2 server with DPMA 1.6 and Digium D50 phones.
The phones are all running the latest firmware, 1_4_0_0_57389.
Everything works with the Visual Voicemail except the "Received Date" field that shows during playback.
It always shows a static date and time of "4/30/20 10:58am" for all voicemails.
When the phone is not in use the date/time that shows on the display is correct. Also the date/time on the Asterisk server is correct.
So it looks like the Visual Voicemail app is not able to read the received date of the voicemails so it falls back to the date/time above.
Does any one have suggestions to fix this? I noticed there is now a version 1.7 of the DPMA just released a month ago. However, the list of changes/fixes does not mention anything about the visual voicemail app.