diff --git a/configs/vpb.conf.sample b/configs/vpb.conf.sample
index 029b7f4171c2c63ef8adede274fc67e9f1cef330..294304f5cc16daa20f2ed4e5c140a4e9b2e90a8f 100755
--- a/configs/vpb.conf.sample
+++ b/configs/vpb.conf.sample
@@ -3,6 +3,7 @@
 ; For [general] section
 ; type = v12pci|v6pci|v4pci
 ; cards = number of cards
+; indication = 1 ( To use Asterisk indication tones)
 ; For [interface] section
 ; board = board_number (1, 2, 3, ...)
 ; channel = channel_number (1,2,3...)