At one time the feature of changing the greeting message was working…then one day it stopped. No clue as to who/why.
Enter the voicemail system and hit 0. The call is dumped from the phone users POV.
tail -f messages
[Jul 10 08:35:19] WARNING[25751] file.c: File vm-tmpexists does not exist in any format
[Jul 10 08:35:19] WARNING[25751] file.c: Unable to open vm-tmpexists (format 0x4 (ulaw)): No such file or directory
locate vm-tmpexists
/var/lib/asterisk/sounds/vm-tmpexists.ulaw
So it does exist.
and asterisk -r
[Jul 10 08:14:51] WARNING[25486]: file.c:607 ast_openstream_full: File vm-tmpexists does not exist in any format
[Jul 10 08:14:51] WARNING[25486]: file.c:906 ast_streamfile: Unable to open vm-tmpexists (format 0x4 (ulaw)): No such file or directory
grep operator voicemail.conf
operator=no ; Allow sender to hit 0 before/after/during leaving a voicemail to