voicecheck is a small application that will use your Google Voice account information and display notifications SMS and Voicemails using libnotify.
Usage: voicecheck -e|--email EMAIL [-p|--password PASSWORD] [-i|--interval INTERVAL] [-g|--goldfish]
-e Your Google account email address
-p Password for the same; will be prompted for if omitted
-i Update interval in seconds, defaults to 60
-g Keep no record of previous alerts; notify on every update
Perhaps consider logging it to a document when you run it, attach the log to a bug report if/when the program crashes/fails.
/path/to/voicecheck/ -e [email@here] -p [password here] > /path/to/voicecheck/log.txt