diff --git a/configs/voicemail.conf.sample b/configs/voicemail.conf.sample
index 8e43826d65c4533a547d97d31a255be860858d05..a6a2b8d80350d3e2fbbd5f60a6c1e4a73d6d5fa8 100755
--- a/configs/voicemail.conf.sample
+++ b/configs/voicemail.conf.sample
@@ -10,11 +10,11 @@ serveremail=asterisk
 ;serveremail=asterisk@linux-support.net
 ; Should the email contain the voicemail as an attachment
 attach=yes
-; Maximum length of a voicemail message
+; Maximum length of a voicemail message in seconds
 ;maxmessage=180
-; Minimum length of a voicemail message
+; Minimum length of a voicemail message in seconds
 ;minmessage=3
-; Maximum length of greetings
+; Maximum length of greetings in seconds
 ;maxgreet=60
 ; How many miliseconds to skip forward/back when rew/ff in message playback
 skipms=3000