diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index 8a52b07a80..67d6dd21ff 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -460,7 +460,6 @@ srvlookup=yes			; Enable DNS SRV lookups on outbound calls
 ;allow=alaw
 ;allow=g723.1			; Asterisk only supports g723.1 pass-thru!
 ;allow=g729			; Pass-thru only unless g729 license obtained
-;astdb=chan2ext/SIP/grandstream1=1234	; ensures an astDB entry exists
 ;callingpres=allowed_passed_screen	; Set caller ID presentation
 				; See README.callingpres for more information