diff --git a/configs/res_fax.conf.sample b/configs/res_fax.conf.sample
index 47ea35e044..dfaa4ce93b 100644
--- a/configs/res_fax.conf.sample
+++ b/configs/res_fax.conf.sample
@@ -4,12 +4,12 @@
 ; Maximum Transmission Rate
 ; Possible values are { 2400 | 4800 | 7200 | 9600 | 12000 | 14400 }
 ; Set this value to the maximum desired transfer rate.  Default: 14400
-maxrate=14400
+;maxrate=14400
 
 ; Minimum Transmission Rate
 ; Possible values are { 2400 | 4800 | 7200 | 9600 | 12000 | 14400 }
 ; Set this value to the minimum desired transfer rate.  Default: 4800
-minrate=4800
+;minrate=4800
 
 ; Send Progress/Status events to manager session
 ; Manager events with 'call' class permissions will receive events indicating the
@@ -21,8 +21,8 @@ statusevents=yes
 ; modem capabilities
 ; Possible values are { v17 | v27 | v29 }
 ; Set this value to modify the default modem options.  Default: v17,v27,v29
-modems=v17,v27,v29
+;modems=v17,v27,v29
 
 ; Enable/disable T.30 ECM (error correction mode) by default.
 ; Default: Enabled
-ecm=yes
+;ecm=yes